21531657 (number)

21531657 is an odd 8-digits composite number following 21531656 and preceding 21531658. In scientific notation, it is written as 2.1531657 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 11768592 positive integers (up to 21531657) that are relatively prime to 21531657.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred thirty-one thousand six hundred fifty-seven

Notation

Scientific notation 2.1531657 × 10^7
Engineering notation 2.1531657 × 10^6

Prime Factorization of 21531657

Prime Factorization 7 × 69 × 44579

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21531657
Product of the distinct prime numbers

The prime factorization of 21531657 is 7 × 69 × 44579. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21531657)

Multiplication

n×y
n×2 43063314
n×3 64594971
n×4 86126628
n×5 107658285

Division

n÷y
n÷2 10765828.5
n÷3 7177219
n÷3 5382914.25
n÷5 4306331.4

Exponentiation

ny
n2 463612253165649
n3 9.9823400161599E+21
n4 2.1493632128533E+29
n5 4.6279351467575E+36

Nth Root

y√n
2√n 4640.2216541885
3√n 278.20129736917
4√n 68.119172442041
5√n 29.282994813703

Divisors of 21531657

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21531656
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21531657 can be divided by 8 positive divisors. The sum of these divisors (counting 21531657) is 1, the average is 0.125.

Base conversion 21531657

Base System Value
2 Binary 1010010001000110000001001
3 Ternary 1111111220212210
4 Quaternary 1102020300021
5 Quinary 21003003112
6 Senary 2045255333
8 Octal 122106011
10 Decimal 21531657
12 Duodecimal 7264549
16 Hexadecimal 1488c09
20 Vigesimal 6eb92h
36 Base36 cthxl

Cryptographic Hash Functions

md5 a1efd72a77948e3009f17f5b326d1725
sha1 8f70ff900e0339799bc280ec707f93f556b82e1d
sha256 fa9ee8528d5d20f8f4c59591ff53bd5828c915a5f0e8c8a277b138fe51c30c80
sha512 abfee5dc376724d15ae6d35e8a98e79da3d226b78199496c1050158b23c0f25e3438d192ffa6bb560498a3b21f814ba09b9ac0624a9f02743a4688b235d1bfc4
ripemd-160 377af98427e8f01af97dc0c90c6efe20afe6d95f

21531657 as geometric shapes

Circle

Radius = n
Diameter 43063314
Circumference 135287390.90163
Area 1.4564808486594E+15

Sphere

Radius = n
Volume 4.1813928080538E+22
Surface area 5.8259233946377E+15
Circumference 135287390.90163

Square

Length = n
Perimeter 86126628
Area 463612253165649
Diagonal 30450361.349766

Cube

Length = n
Surface area 2781673518993894
Volume 9.9823400161599E+21
Space diagonal 37293923.895146

Equilateral Triangle

Length = n
Perimeter 64594971
Area 2.007499943736E+14
Altitude 18646961.947573

Triangular Pyramid

Length = n
Surface area 2.007499943736E+14
Volume 1.1764300529228E+21
Height 10150120.449922