21000912 (number)

21000912 is an even 8-digits composite number following 21000911 and preceding 21000913. In scientific notation, it is written as 2.1000912 × 10^7. The sum of its digits is 15. It has a total of 6 prime factors and 20 positive divisors. There are 7000288 positive integers (up to 21000912) that are relatively prime to 21000912.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred twelve

Notation

Scientific notation 2.1000912 × 10^7
Engineering notation 2.1000912 × 10^6

Prime Factorization of 21000912

Prime Factorization 2 × 2 × 2 × 2 × 3 × 437519

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2625114
Product of the distinct prime numbers

The prime factorization of 21000912 is 2 × 2 × 2 × 2 × 3 × 437519. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 7, 42, 68, 259, 920, 6296, 7031, 21964, 19677, 328564, 672771, 8549007, 9076728, 46463756, 83828482, 47985579, 828195083, 5814911821, 8661830307

Basic calculations (n = 21000912)

Multiplication

n×y
n×2 42001824
n×3 63002736
n×4 84003648
n×5 105004560

Division

n÷y
n÷2 10500456
n÷3 7000304
n÷3 5250228
n÷5 4200182.4

Exponentiation

ny
n2 441038304831744
n3 9.2622066284006E+21
n4 1.9451478632886E+29
n5 4.0849879103912E+36

Nth Root

y√n
2√n 4582.6752012334
3√n 275.89641145149
4√n 67.695459236447
5√n 29.137187656455

Divisors of 21000912

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 437519, 875038, 1312557, 1750076, 2625114, 3500152, 5250228, 7000304, 10500456, 21000912

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21000911
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000912 can be divided by 20 positive divisors. The sum of these divisors (counting 21000912) is 1, the average is 0.05.

Base conversion 21000912

Base System Value
2 Binary 1010000000111001011010000
3 Ternary 1110111221211120
4 Quaternary 1100013023100
5 Quinary 20334012122
6 Senary 2030042240
8 Octal 120071320
10 Decimal 21000912
12 Duodecimal 7049380
16 Hexadecimal 14072d0
20 Vigesimal 6b525c
36 Base36 ci4eo

Cryptographic Hash Functions

md5 4b4dd7ed4ebf7c9b4be0fad629c1be51
sha1 5540ffe7164a9ae3128b1f83334aa565d63230fb
sha256 b03ee225a730580bab7b1208c79da26c0a00fc47beef3507ba0b9144bd123213
sha512 d9b906cee1c2ffd40a639b3a5e07432666cc58d7a437829f0839cee8f9a8c94a3a8d4d75156855ad069f3bed8a6395cbf3da07be671a0c2e549241735420acd5
ripemd-160 39bd40b2d572f34ea86d0a6933f34ea1545bb21e

21000912 as geometric shapes

Circle

Radius = n
Diameter 42001824
Circumference 131952621.71577
Area 1.3855626984111E+15

Sphere

Radius = n
Volume 3.8797440399752E+22
Surface area 5.5422507936444E+15
Circumference 131952621.71577

Square

Length = n
Perimeter 84003648
Area 441038304831744
Diagonal 29699774.572604

Cube

Length = n
Surface area 2646229828990464
Volume 9.2622066284006E+21
Space diagonal 36374646.589283

Equilateral Triangle

Length = n
Perimeter 63002736
Area 1.9097518801316E+14
Altitude 18187323.294641

Triangular Pyramid

Length = n
Surface area 1.9097518801316E+14
Volume 1.0915615192822E+21
Height 9899924.8575346