221 (Number) - MetaNumbers

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Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

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• Is Prime? no
• Number parity odd
• Number length 3
• Sum of Digits 5
• Digital Root 5

Name	two hundred twenty-one

Scientific notation	2.21 × 102
Engineering notation	221 × 100

Prime Factorization 13 × 17

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	221	Product of the distinct prime numbers
λ	Liouville Lambda	1	Returns the parity of Ω(n), such that λ(n) = (-1)Ω(n)
μ	Mobius Mu	1	Returns: 1, if n has an even number of prime factors (and is square free) −1, if n has an odd number of prime factors (and is square free) 0, if n has a squared prime factor
Λ	Mangoldt function	0	Returns log(p) if n is a power pk of any prime p (for any k >= 1), else returns 0

The prime factorization of 221 is 13 × 17. Since it has a total of 2 prime factors, 221 is a composite number.

1, 13, 17, 221

4 divisors

Even divisors	0
Odd divisors	4
4k+1 divisors	4
4k+3 divisors	0

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	252	Sum of all the positive divisors of n
s	Aliquot Sum	31	Sum of the proper positive divisors of n
A	Arithmetic Mean	63	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	14.866068747319	Returns the nth root of the product of n divisors
H	Harmonic Mean	3.5079365079365	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221 can be divided by 4 positive divisors (out of which none is even, and 4 are odd). The sum of these divisors (counting 221) is 252, the average is 63.

1 φ(n) n

φ	Euler Totient	192	Total number of positive integers not greater than n that are coprime to n
λ	Carmichael Lambda	48	Smallest positive number such that aλ(n) ≡ 1 (mod n) for all a coprime to n
π	Prime Pi	≈ 50	Total number of primes less than or equal to n
r2	Sum of 2 squares	16	The number of ways n can be represented as the sum of 2 squares

There are 192 positive integers (less than 221) that are coprime with 221. And there are approximately 50 prime numbers less than or equal to 221.

m	n mod m
2	1
3	2
4	1
5	1
6	5
7	4
8	5
9	5

221 is not divisible by any number less than or equal to 9.

• Arithmetic
• Semiprime
• Deficient

• Polite

• Centered Square

• Square Free

• LucasCarmichael

Base	System	Value
2	Binary	11011101
3	Ternary	22012
4	Quaternary	3131
5	Quinary	1341
6	Senary	1005
8	Octal	335
10	Decimal	221
12	Duodecimal	165
16	Hexadecimal	dd
20	Vigesimal	b1
36	Base36	65

n×2	442
n×3	663
n×4	884
n×5	1105

n÷2	110.500
n÷3	73.666
n÷4	55.250
n÷5	44.200

n2	48841
n3	10793861
n4	2385443281
n5	527182965101

2√n	14.866068747319
3√n	6.0459435960125
4√n	3.8556541270345
5√n	2.9435976987923

Diameter	442
Circumference	1388.5839528867
Area	153438.52679398

Volume	45213219.228626
Surface area	613754.10717592
Circumference	1388.5839528867

Perimeter	884
Area	48841
Diagonal	312.54119728445

Surface area	293046
Volume	10793861
Space diagonal	382.78322847272

Perimeter	663
Area	21148.773373118
Altitude	191.39161423636

Surface area	84595.093492472
Volume	1272068.7180475
Height	180.44574438503

md5	060ad92489947d410d897474079c1477
sha1	9a70776c743352cfcf688e52512673332e5e4007
sha256	67e9c3acebb154a282f326d4ff1951cd1f342e58e74d562b556b517da5e56132
sha512	cc9aab6fee3af4f819209bf43e3bc6f8f02ecbf5d2f27815b9a2132d3dbbfe9ba72d6024794487c37affbc6828040ed74d3d2671bb962b44c95f9070d4e2db48
ripemd-160	4bdbd27cd6cb798409a7ad89cf68977ec5a77cdf

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