21151812 (number)

21151812 is an even 8-digits composite number following 21151811 and preceding 21151813. In scientific notation, it is written as 2.1151812 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 24 positive divisors. There are 6130080 positive integers (up to 21151812) that are relatively prime to 21151812.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred fifty-one thousand eight hundred twelve

Notation

Scientific notation 2.1151812 × 10^7
Engineering notation 2.1151812 × 10^6

Prime Factorization of 21151812

Prime Factorization 2 × 2 × 69 × 11 × 6967

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10575906
Product of the distinct prime numbers

The prime factorization of 21151812 is 2 × 2 × 69 × 11 × 6967. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 91, 49, 926, 630, 2697, 3866, 62961, 3857, 712495, 285021, 1436873, 1447485, 20060286, 4435826, 968440469, 652918992, 5134668017, 356723587

Basic calculations (n = 21151812)

Multiplication

n×y
n×2 42303624
n×3 63455436
n×4 84607248
n×5 105759060

Division

n÷y
n÷2 10575906
n÷3 7050604
n÷3 5287953
n÷5 4230362.4

Exponentiation

ny
n2 447399150883344
n3 9.4633027284441E+21
n4 2.0016600021114E+29
n5 4.2338736052579E+36

Nth Root

y√n
2√n 4599.1099138855
3√n 276.5556439106
4√n 67.816737711906
5√n 29.178940307113

Divisors of 21151812

1, 2, 4, 11, 22, 44, 69, 138, 276, 759, 1518, 3036, 6967, 13934, 27868, 76637, 153274, 306548, 480723, 961446, 1922892, 5287953, 10575906, 21151812

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21151811
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21151812 can be divided by 24 positive divisors. The sum of these divisors (counting 21151812) is 1, the average is 0.041666666666667.

Base conversion 21151812

Base System Value
2 Binary 1010000101100000001000100
3 Ternary 1110210121211110
4 Quaternary 1100230001010
5 Quinary 20403324222
6 Senary 2033205020
8 Octal 120540104
10 Decimal 21151812
12 Duodecimal 7100770
16 Hexadecimal 142c044
20 Vigesimal 6c3jac
36 Base36 clcuc

Cryptographic Hash Functions

md5 209c1dd13a3edaa7f807366dcba26516
sha1 204f75190ae4eda6815ba1269f2442aaae52ab8e
sha256 13ae3272d51133a1f21260e52edbd1ddfa2026cbf19c5969a1bb50839116eb09
sha512 14e9fcaa112d97fca45a883674ab329e9ebc29d27b448a861cc5264622c2e84721e098878cf3cf9fcf2aa045cf5c141f38511cdc486eb3cba30f37cb861f6ce8
ripemd-160 043951a942efcd82204a1323ddfbb9b9c7e29aea

21151812 as geometric shapes

Circle

Radius = n
Diameter 42303624
Circumference 132900754.37862
Area 1.4055458856374E+15

Sphere

Radius = n
Volume 3.9639789773835E+22
Surface area 5.6221835425497E+15
Circumference 132900754.37862

Square

Length = n
Perimeter 84607248
Area 447399150883344
Diagonal 29913179.399166

Cube

Length = n
Surface area 2684394905300064
Volume 9.4633027284441E+21
Space diagonal 36636013.056145

Equilateral Triangle

Length = n
Perimeter 63455436
Area 1.9372951514828E+14
Altitude 18318006.528073

Triangular Pyramid

Length = n
Surface area 1.9372951514828E+14
Volume 1.1152609219507E+21
Height 9971059.799722