Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21131861 (number)

21131861 is an odd 8-digits composite number following 21131860 and preceding 21131862. In scientific notation, it is written as 2.1131861 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 21031500 positive integers (up to 21131861) that are relatively prime to 21131861.

Interesting facts

21131861 has 4 divisors, whose sum is 21232224
The reverse of 21131861 is 16813112
Previous prime number is 211

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

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

Notation

Scientific notation	2.1131861 × 10^7
Engineering notation	2.1131861 × 10^6

Prime Factorization of 21131861

Prime Factorization 211 × 100151

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21131861	Product of the distinct prime numbers

The prime factorization of 21131861 is 211 × 100151. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 5, 81, 91, 876, 785, 8901, 1508, 78466, 80648, 868252, 784500, 305521, 4680180, 8915993, 95414675, 875462868, 24521197, 1365823762, 2216674362

Basic calculations (n = 21131861)

Multiplication

n×y

n×2	42263722
n×3	63395583
n×4	84527444
n×5	105659305

Division

n÷y

n÷2	10565930.5
n÷3	7043953.6666667
n÷3	5282965.25
n÷5	4226372.2

Exponentiation

n^y

n²	446555549323321
n³	9.4365497970791E+21
n⁴	1.9941185863145E+29
n⁵	4.2139436783515E+36

Nth Root

^y√n

²√n	4596.940395524
³√n	276.46866480079
⁴√n	67.800740375928
⁵√n	29.173433745289

Divisors of 21131861

1, 211, 100151, 21131861

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21131860	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131861 can be divided by 4 positive divisors. The sum of these divisors (counting 21131861) is 1, the average is 0.25.

Base conversion 21131861

Base	System	Value
2	Binary	1010000100111001001010101
3	Ternary	1110202121110112
4	Quaternary	1100213021111
5	Quinary	20402204421
6	Senary	2032532405
8	Octal	120471125
10	Decimal	21131861
12	Duodecimal	70b1105
16	Hexadecimal	1427255
20	Vigesimal	6c19d1
36	Base36	ckxg5

Cryptographic Hash Functions

md5	4a38eb36fb6bfe330711bad555540e55
sha1	2c4f485ef60b6d41ec0a11078a1566054572979d
sha256	bbc50094aa08ea51a9cd6eb201c3a82013cd3f624e204cd96c7888c88c78b0b1
sha512	7206a6d447db2a58b9b2faee987356b0d78f36168d00891555c4b0738ec07cb75f6f2f34f7cbae7304c5a318adf8a0ddc70b31c29b6dedc166715243bd12b1a3
ripemd-160	3e5bac114fb2d995ffc69d9acce6c0ac05cb42e4

21131861 as geometric shapes

Circle

Radius = n

Diameter	42263722
Circumference	132775398.54856
Area	1.4028956331739E+15

Sphere

Radius = n

Volume	3.9527727356984E+22
Surface area	5.6115825326956E+15
Circumference	132775398.54856

Square

Length = n

Perimeter	84527444
Area	446555549323321
Diagonal	29884964.424383

Cube

Length = n

Surface area	2679333295939926
Volume	9.4365497970791E+21
Space diagonal	36601456.910483

Equilateral Triangle

Length = n

Perimeter	63395583
Area	1.9336422495746E+14
Altitude	18300728.455242

Triangular Pyramid

Length = n

Surface area	1.9336422495746E+14
Volume	1.1121080587532E+21
Height	9961654.8081277