21531908 (number)

21531908 is an even 8-digits composite number following 21531907 and preceding 21531909. In scientific notation, it is written as 2.1531908 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 10731360 positive integers (up to 21531908) that are relatively prime to 21531908.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred thirty-one thousand nine hundred eight

Notation

Scientific notation 2.1531908 × 10^7
Engineering notation 2.1531908 × 10^6

Prime Factorization of 21531908

Prime Factorization 2 × 2 × 317 × 16981

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10765954
Product of the distinct prime numbers

The prime factorization of 21531908 is 2 × 2 × 317 × 16981. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 5, 60, 29, 87, 157, 1401, 2177, 3246, 80079, 187887, 468356, 4399701, 7628182, 9898069, 50090386, 528623209, 733740529, 2604478977, 4350691024

Basic calculations (n = 21531908)

Multiplication

n×y
n×2 43063816
n×3 64595724
n×4 86127632
n×5 107659540

Division

n÷y
n÷2 10765954
n÷3 7177302.6666667
n÷3 5382977
n÷5 4306381.6

Exponentiation

ny
n2 463623062120464
n3 9.9826891202561E+21
n4 2.1494634372996E+29
n5 4.6282048981298E+36

Nth Root

y√n
2√n 4640.2487002315
3√n 278.20237838606
4√n 68.119370961801
5√n 29.283063085248

Divisors of 21531908

1, 2, 4, 317, 634, 1268, 16981, 33962, 67924, 5382977, 10765954, 21531908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21531907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21531908 can be divided by 12 positive divisors. The sum of these divisors (counting 21531908) is 1, the average is 0.083333333333333.

Base conversion 21531908

Base System Value
2 Binary 1010010001000110100000100
3 Ternary 1111111221020002
4 Quaternary 1102020310010
5 Quinary 21003010113
6 Senary 2045300432
8 Octal 122106404
10 Decimal 21531908
12 Duodecimal 7264718
16 Hexadecimal 1488d04
20 Vigesimal 6eb9f8
36 Base36 cti4k

Cryptographic Hash Functions

md5 ce4c1b2f9267efde702c020236aec15d
sha1 3aa06b555eb44d79c32bdf960b6baa2781c481f2
sha256 d03ebda21f870c2a0671070aff420354d101bc541549aa0ad678dd7a2225f82a
sha512 fb54bced9ef31e39be7143d815ee8d6a681754492144ad1a40557ba9c0150333dd97869582e8a0202530932df6ac3324835b7036d1d82cb2aeaabc678818b13a
ripemd-160 0f67b4b4fe1b6797c2e10885ed25cd1335ca008e

21531908 as geometric shapes

Circle

Radius = n
Diameter 43063816
Circumference 135288967.98114
Area 1.4565148059925E+15

Sphere

Radius = n
Volume 4.1815390404356E+22
Surface area 5.8260592239698E+15
Circumference 135288967.98114

Square

Length = n
Perimeter 86127632
Area 463623062120464
Diagonal 30450716.31737

Cube

Length = n
Surface area 2781738372722784
Volume 9.9826891202561E+21
Space diagonal 37294358.639899

Equilateral Triangle

Length = n
Perimeter 64595724
Area 2.0075467478833E+14
Altitude 18647179.319949

Triangular Pyramid

Length = n
Surface area 2.0075467478833E+14
Volume 1.176471195235E+21
Height 10150238.772457