21581312 (number)

21581312 is an even 8-digits composite number following 21581311 and preceding 21581313. In scientific notation, it is written as 2.1581312 × 10^7. The sum of its digits is 23. It has a total of 11 prime factors and 40 positive divisors. There are 10598400 positive integers (up to 21581312) that are relatively prime to 21581312.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred eighty-one thousand three hundred twelve

Notation

Scientific notation 2.1581312 × 10^7
Engineering notation 2.1581312 × 10^6

Prime Factorization of 21581312

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 61 × 691

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 11
Total number of prime factors
rad Radical 84302
Product of the distinct prime numbers

The prime factorization of 21581312 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 61 × 691. Since it has a total of 11 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21581312)

Multiplication

n×y
n×2 43162624
n×3 64743936
n×4 86325248
n×5 107906560

Division

n÷y
n÷2 10790656
n÷3 7193770.6666667
n÷3 5395328
n÷5 4316262.4

Exponentiation

ny
n2 465753027641344
n3 1.0051561404472E+22
n4 2.1692588275708E+29
n5 4.6815451566559E+36

Nth Root

y√n
2√n 4645.5690717069
3√n 278.4149901648
4√n 68.15841159906
5√n 29.296488505028

Divisors of 21581312

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21581311
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21581312 can be divided by 40 positive divisors. The sum of these divisors (counting 21581312) is 1, the average is 0.025.

Base conversion 21581312

Base System Value
2 Binary 1010010010100111000000000
3 Ternary 1111121102222212
4 Quaternary 1102110320000
5 Quinary 21011100222
6 Senary 2050321252
8 Octal 122247000
10 Decimal 21581312
12 Duodecimal 7289228
16 Hexadecimal 1494e00
20 Vigesimal 6ehd5c
36 Base36 cuk8w

Cryptographic Hash Functions

md5 b57938ffd14957cdcdfc90c8c4d29069
sha1 d7bf9ab8d0f4dbd5f997c3b398187effb15cc890
sha256 e8052070c450f306333da7fcf62e830013f01c20e9c1229c60cf9ebed31b1102
sha512 eaf63394640f72aab5c0f333cebd8921111d7816c4071951c99af6119fd23f1ea978e84d88f76273042669c753e1938e4794578b0453e3496ae47fed49b0ebe6
ripemd-160 bd6a6b28db6719edfde2e370a5692146073176bf

21581312 as geometric shapes

Circle

Radius = n
Diameter 43162624
Circumference 135599382.46806
Area 1.4632062900253E+15

Sphere

Radius = n
Volume 4.2103881953863E+22
Surface area 5.852825160101E+15
Circumference 135599382.46806

Square

Length = n
Perimeter 86325248
Area 465753027641344
Diagonal 30520584.124205

Cube

Length = n
Surface area 2794518165848064
Volume 1.0051561404472E+22
Space diagonal 37379928.877996

Equilateral Triangle

Length = n
Perimeter 64743936
Area 2.0167697691346E+14
Altitude 18689964.438998

Triangular Pyramid

Length = n
Surface area 2.0167697691346E+14
Volume 1.1845878717692E+21
Height 10173528.041402