21491432 (number)

21491432 is an even 8-digits composite number following 21491431 and preceding 21491433. In scientific notation, it is written as 2.1491432 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 16 positive divisors. There are 9849600 positive integers (up to 21491432) that are relatively prime to 21491432.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand four hundred thirty-two

Notation

Scientific notation 2.1491432 × 10^7
Engineering notation 2.1491432 × 10^6

Prime Factorization of 21491432

Prime Factorization 2 × 2 × 2 × 589 × 4561

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5372858
Product of the distinct prime numbers

The prime factorization of 21491432 is 2 × 2 × 2 × 589 × 4561. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 1, 57, 67, 786, 192, 6028, 5817, 22251, 79401, 353498, 724071, 5073780, 5585766, 54772676, 58606254, 604687593, 409776223, 9059471498, 7305618168

Basic calculations (n = 21491432)

Multiplication

n×y
n×2 42982864
n×3 64474296
n×4 85965728
n×5 107457160

Division

n÷y
n÷2 10745716
n÷3 7163810.6666667
n÷3 5372858
n÷5 4298286.4

Exponentiation

ny
n2 461881649410624
n3 9.9264980603563E+21
n4 2.1333465806228E+29
n5 4.5848672969887E+36

Nth Root

y√n
2√n 4635.8852444814
3√n 278.02794605455
4√n 68.087335419161
5√n 29.272045450427

Divisors of 21491432

1, 2, 4, 8, 589, 1178, 2356, 4561, 4712, 9122, 18244, 36488, 2686429, 5372858, 10745716, 21491432

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491431
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491432 can be divided by 16 positive divisors. The sum of these divisors (counting 21491432) is 1, the average is 0.0625.

Base conversion 21491432

Base System Value
2 Binary 1010001111110111011101000
3 Ternary 1111102212200222
4 Quaternary 1101332323220
5 Quinary 21000211212
6 Senary 2044345212
8 Octal 121767350
10 Decimal 21491432
12 Duodecimal 7245208
16 Hexadecimal 147eee8
20 Vigesimal 6e68bc
36 Base36 csmw8

Cryptographic Hash Functions

md5 6a208085576bcb6f79818e3b521e48ea
sha1 9da2c3c0dbec87f66bd0800a3d8e12fc2604a780
sha256 da104282c4b2d373c8e94e74eabbabe9742c3c3dae9cb053dc2dd8b56f619f32
sha512 bc7a7a374eccd92d17b61aa5b4faadf8bbba5f505aecd67f0c88a075e4e06562a1731848fa109b7b3d1225cac97d47a74471927f52c9d8785a3fb4361740d2ad
ripemd-160 8a58d730396b50873b629c18a41a9093f57bdd21

21491432 as geometric shapes

Circle

Radius = n
Diameter 42982864
Circumference 135034649.77265
Area 1.4510439966164E+15

Sphere

Radius = n
Volume 4.1580017843051E+22
Surface area 5.8041759864654E+15
Circumference 135034649.77265

Square

Length = n
Perimeter 85965728
Area 461881649410624
Diagonal 30393474.609219

Cube

Length = n
Surface area 2771289896463744
Volume 9.9264980603563E+21
Space diagonal 37224252.151412

Equilateral Triangle

Length = n
Perimeter 64474296
Area 2.0000062096573E+14
Altitude 18612126.075706

Triangular Pyramid

Length = n
Surface area 2.0000062096573E+14
Volume 1.1698490153188E+21
Height 10131158.203073