21207428 (number)

21207428 is an even 8-digits composite number following 21207427 and preceding 21207429. In scientific notation, it is written as 2.1207428 × 10^7. The sum of its digits is 26. It has a total of 6 prime factors and 36 positive divisors. There are 9406320 positive integers (up to 21207428) that are relatively prime to 21207428.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred seven thousand four hundred twenty-eight

Notation

Scientific notation 2.1207428 × 10^7
Engineering notation 2.1207428 × 10^6

Prime Factorization of 21207428

Prime Factorization 2 × 2 × 11 × 43 × 11 × 1019

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 963974
Product of the distinct prime numbers

The prime factorization of 21207428 is 2 × 2 × 11 × 43 × 11 × 1019. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 9, 53, 44, 744, 522, 1612, 3466, 29592, 30760, 836848, 694593, 1509466, 422829, 6635935, 18160980, 434308748, 323980285, 4042162318, 3760838360

Basic calculations (n = 21207428)

Multiplication

n×y
n×2 42414856
n×3 63622284
n×4 84829712
n×5 106037140

Division

n÷y
n÷2 10603714
n÷3 7069142.6666667
n÷3 5301857
n÷5 4241485.6

Exponentiation

ny
n2 449755002375184
n3 9.5381468305115E+21
n4 2.022795621615E+29
n5 4.2898292504116E+36

Nth Root

y√n
2√n 4605.1523318996
3√n 276.7978210761
4√n 67.861272695843
5√n 29.194268656633

Divisors of 21207428

1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 1019, 1892, 2038, 4076, 5203, 10406, 11209, 20812, 22418, 43817, 44836, 87634, 123299, 175268, 246598, 481987, 493196, 963974, 1927948, 5301857, 10603714, 21207428

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21207427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21207428 can be divided by 36 positive divisors. The sum of these divisors (counting 21207428) is 1, the average is 0.027777777777778.

Base conversion 21207428

Base System Value
2 Binary 1010000111001100110000100
3 Ternary 1110220110010022
4 Quaternary 1100321212010
5 Quinary 20412114203
6 Senary 2034314312
8 Octal 120714604
10 Decimal 21207428
12 Duodecimal 7128998
16 Hexadecimal 1439984
20 Vigesimal 6caib8
36 Base36 cmjr8

Cryptographic Hash Functions

md5 a1f3246a4585818e29268d510da4dda4
sha1 63fd6240ae7db59ac1151231c369da50654b31e7
sha256 8d074f9c3c434847eb62dc43c9e59a81a2660231ce17981c7242d1e6aaa0b037
sha512 c78045c0a736fca2e65949ad4308e9db6a3395a43049d6c6c334bb2677deb61cb55fddcc9b94bde747463fe6e4b6349a3c82bc8699c4a643a71ae9004cbb9513
ripemd-160 40399b363f6bb7917114de5e71612cfa76f5ae1e

21207428 as geometric shapes

Circle

Radius = n
Diameter 42414856
Circumference 133250200.01267
Area 1.4129470113771E+15

Sphere

Radius = n
Volume 3.9953296015461E+22
Surface area 5.6517880455086E+15
Circumference 133250200.01267

Square

Length = n
Perimeter 84829712
Area 449755002375184
Diagonal 29991832.300651

Cube

Length = n
Surface area 2698530014251104
Volume 9.5381468305115E+21
Space diagonal 36732342.793859

Equilateral Triangle

Length = n
Perimeter 63622284
Area 1.9474962876802E+14
Altitude 18366171.396929

Triangular Pyramid

Length = n
Surface area 1.9474962876802E+14
Volume 1.1240813839679E+21
Height 9997277.4335503