21813910 (number)

21813910 is an even 8-digits composite number following 21813909 and preceding 21813911. In scientific notation, it is written as 2.1813910 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 8703936 positive integers (up to 21813910) that are relatively prime to 21813910.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred thirteen thousand nine hundred ten

Notation

Scientific notation 2.1813910 × 10^7
Engineering notation 2.1813910 × 10^6

Prime Factorization of 21813910

Prime Factorization 2 × 5 × 439 × 4969

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21813910
Product of the distinct prime numbers

The prime factorization of 21813910 is 2 × 5 × 439 × 4969. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 3, 8, 19, 226, 989, 8885, 2030, 2435, 40920, 781753, 887865, 1963341, 3588882, 23327508, 96749372, 98776720, 990536874, 2785511552, 6519311529

Basic calculations (n = 21813910)

Multiplication

n×y
n×2 43627820
n×3 65441730
n×4 87255640
n×5 109069550

Division

n÷y
n÷2 10906955
n÷3 7271303.3333333
n÷3 5453477.5
n÷5 4362782

Exponentiation

ny
n2 475846669488100
n3 1.0380076422013E+22
n4 2.2643005286292E+29
n5 4.9393247944469E+36

Nth Root

y√n
2√n 4670.5363717672
3√n 279.41164723693
4√n 68.341322578416
5√n 29.359368055937

Divisors of 21813910

1, 2, 5, 10, 439, 878, 2195, 4390, 4969, 9938, 24845, 49690, 2181391, 4362782, 10906955, 21813910

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 -21813909
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 21813910 can be divided by 16 positive divisors. The sum of these divisors (counting 21813910) is 1, the average is 0.0625.

Base conversion 21813910

Base System Value
2 Binary 1010011001101101010010110
3 Ternary 1112001021001121
4 Quaternary 1103031222112
5 Quinary 21041021120
6 Senary 2055314154
8 Octal 123155226
10 Decimal 21813910
12 Duodecimal 737b95a
16 Hexadecimal 14cda96
20 Vigesimal 6g6efa
36 Base36 czjpy

Cryptographic Hash Functions

md5 3f7bea8ff7dd6c97fcc299606a38fdf2
sha1 6676b80ffdc56a42cf24c15ec4c0dc0dd5976ae5
sha256 eb04d5c5bb2d9971ba19a463a380b6af9ced7d524f4b6c38d0d2ad509e055e21
sha512 134be1f6953e26030d4a5eafaae3f6141ca18349d574b51e4a7bbeb807f125bafd7560ae9870379b8da0a4537ff96d57a048f45f046abb9ddd7a15cf8bd00238
ripemd-160 eafdd2e8877289b941c1a23d03b323d5e21417af

21813910 as geometric shapes

Circle

Radius = n
Diameter 43627820
Circumference 137060838.80414
Area 1.494916401099E+15

Sphere

Radius = n
Volume 4.3479962441463E+22
Surface area 5.9796656043959E+15
Circumference 137060838.80414

Square

Length = n
Perimeter 87255640
Area 475846669488100
Diagonal 30849527.370386

Cube

Length = n
Surface area 2855080016928600
Volume 1.0380076422013E+22
Space diagonal 37782800.431735

Equilateral Triangle

Length = n
Perimeter 65441730
Area 2.0604765204146E+14
Altitude 18891400.215867

Triangular Pyramid

Length = n
Surface area 2.0604765204146E+14
Volume 1.2233037378734E+21
Height 10283175.790129