21131812 (number)

21131812 is an even 8-digits composite number following 21131811 and preceding 21131813. In scientific notation, it is written as 2.1131812 × 10^7. The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors. There are 9753120 positive integers (up to 21131812) that are relatively prime to 21131812.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131812 × 10^7
Engineering notation 2.1131812 × 10^6

Prime Factorization of 21131812

Prime Factorization 2 × 2 × 13 × 406381

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10565906
Product of the distinct prime numbers

The prime factorization of 21131812 is 2 × 2 × 13 × 406381. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 12, 16, 812, 442, 3917, 8927, 36320, 27206, 916688, 569509, 9763273, 8660808, 81431381, 922139, 944349732, 154663895, 2022232271, 8280640782

Basic calculations (n = 21131812)

Multiplication

n×y
n×2 42263624
n×3 63395436
n×4 84527248
n×5 105659060

Division

n÷y
n÷2 10565906
n÷3 7043937.3333333
n÷3 5282953
n÷5 4226362.4

Exponentiation

ny
n2 446553478403344
n3 9.4364841535655E+21
n4 1.9941000907413E+29
n5 4.2138948226727E+36

Nth Root

y√n
2√n 4596.935065889
3√n 276.46845111122
4√n 67.800701072253
5√n 29.173420215959

Divisors of 21131812

1, 2, 4, 13, 26, 52, 406381, 812762, 1625524, 5282953, 10565906, 21131812

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131811
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131812 can be divided by 12 positive divisors. The sum of these divisors (counting 21131812) is 1, the average is 0.083333333333333.

Base conversion 21131812

Base System Value
2 Binary 1010000100111001000100100
3 Ternary 1110202121101201
4 Quaternary 1100213020210
5 Quinary 20402204222
6 Senary 2032532244
8 Octal 120471044
10 Decimal 21131812
12 Duodecimal 70b1084
16 Hexadecimal 1427224
20 Vigesimal 6c19ac
36 Base36 ckxes

Cryptographic Hash Functions

md5 5e0c7d56e2f769c66037019d97d44581
sha1 e9ecee6f98d313b55d5f80aab9ecb6399779016b
sha256 828e9533ba20c97422d6aee0d375305bab7f11653896f1a35ebc23f3530dd6f6
sha512 ccf2a079ee71dc503b8739a553c2d2099be27645817be0291e00195336f22ff3d182e8e3f4fe09612d861da1dfd9cf47a2a9b15ae086527e40bd5e0fc73b82dd
ripemd-160 23ab53eb39a4f3f8ec7241de96f0fd9e2b979035

21131812 as geometric shapes

Circle

Radius = n
Diameter 42263624
Circumference 132775090.67248
Area 1.4028891271869E+15

Sphere

Radius = n
Volume 3.9527452390077E+22
Surface area 5.6115565087477E+15
Circumference 132775090.67248

Square

Length = n
Perimeter 84527248
Area 446553478403344
Diagonal 29884895.127919

Cube

Length = n
Surface area 2679320870420064
Volume 9.4364841535655E+21
Space diagonal 36601372.039994

Equilateral Triangle

Length = n
Perimeter 63395436
Area 1.933633282228E+14
Altitude 18300686.019997

Triangular Pyramid

Length = n
Surface area 1.933633282228E+14
Volume 1.1121003225909E+21
Height 9961631.7093062