21689872 (number)

21689872 is an even 8-digits composite number following 21689871 and preceding 21689873. In scientific notation, it is written as 2.1689872 × 10^7. The sum of its digits is 43. It has a total of 6 prime factors and 20 positive divisors. There are 10794528 positive integers (up to 21689872) that are relatively prime to 21689872.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-nine thousand eight hundred seventy-two

Notation

Scientific notation 2.1689872 × 10^7
Engineering notation 2.1689872 × 10^6

Prime Factorization of 21689872

Prime Factorization 2 × 2 × 2 × 2 × 223 × 6079

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2711234
Product of the distinct prime numbers

The prime factorization of 21689872 is 2 × 2 × 2 × 2 × 223 × 6079. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 3, 82, 19, 463, 7, 6312, 4910, 1941, 42262, 494763, 722734, 5896309, 4619155, 41022342, 681479, 401683489, 425811605, 8925706688, 9916748121

Basic calculations (n = 21689872)

Multiplication

n×y
n×2 43379744
n×3 65069616
n×4 86759488
n×5 108449360

Division

n÷y
n÷2 10844936
n÷3 7229957.3333333
n÷3 5422468
n÷5 4337974.4

Exponentiation

ny
n2 470450547376384
n3 1.0204012154924E+22
n4 2.2132371752674E+29
n5 4.8004831037191E+36

Nth Root

y√n
2√n 4657.2386668497
3√n 278.88104451293
4√n 68.243964325424
5√n 29.325903275235

Divisors of 21689872

1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 6079, 12158, 24316, 48632, 97264, 1355617, 2711234, 5422468, 10844936, 21689872

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 -21689871
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 21689872 can be divided by 20 positive divisors. The sum of these divisors (counting 21689872) is 1, the average is 0.05.

Base conversion 21689872

Base System Value
2 Binary 1010010101111011000010000
3 Ternary 1111210221220121
4 Quaternary 1102233120100
5 Quinary 21023033442
6 Senary 2052520024
8 Octal 122573020
10 Decimal 21689872
12 Duodecimal 7320014
16 Hexadecimal 14af610
20 Vigesimal 6fb4dc
36 Base36 cww0g

Cryptographic Hash Functions

md5 bb414c16b29112fe9342bcdd97b45a79
sha1 c730f49c30a0462bbb2108c6b47c95f02223be6a
sha256 a7a81530138c6527c935f694ce3466ff4dabe1fd241d9edd692db03aad7a0f1d
sha512 61de53d87e5e2278c5a2dd2b77603428f925be693273ce83a06977acc94bc3e819ea36a94bf12f1f1932a25a94207a543b4b581fa8fb43265af5552fd172a9ab
ripemd-160 278044943e1a2f4a479d8f758750947d5ba1d4a5

21689872 as geometric shapes

Circle

Radius = n
Diameter 43379744
Circumference 136281485.06501
Area 1.4779639835149E+15

Sphere

Radius = n
Volume 4.2742466164066E+22
Surface area 5.9118559340598E+15
Circumference 136281485.06501

Square

Length = n
Perimeter 86759488
Area 470450547376384
Diagonal 30674111.148536

Cube

Length = n
Surface area 2822703284258304
Volume 1.0204012154924E+22
Space diagonal 37567960.313666

Equilateral Triangle

Length = n
Perimeter 65069616
Area 2.0371106262612E+14
Altitude 18783980.156833

Triangular Pyramid

Length = n
Surface area 2.0371106262612E+14
Volume 1.2025543650094E+21
Height 10224703.716179