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

21031381 (number)

21031381 is an odd 8-digits composite number following 21031380 and preceding 21031382. In scientific notation, it is written as 2.1031381 × 10^7. The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors. There are 17998848 positive integers (up to 21031381) that are relatively prime to 21031381.

Interesting facts

21031381 has 8 divisors, whose sum is 24073280
The reverse of 21031381 is 18313012
Previous prime number is 769

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1

Name

Name	twenty-one million thirty-one thousand three hundred eighty-one

Notation

Scientific notation	2.1031381 × 10^7
Engineering notation	2.1031381 × 10^6

Prime Factorization of 21031381

Prime Factorization 7 × 769 × 3907

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21031381	Product of the distinct prime numbers

The prime factorization of 21031381 is 7 × 769 × 3907. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 7, 67, 60, 644, 887, 8572, 8037, 92801, 5754, 720956, 857335, 8049350, 2974651, 34894113, 45935869, 836396142, 671759665, 6705006320, 4855233886

Basic calculations (n = 21031381)

Multiplication

n×y

n×2	42062762
n×3	63094143
n×4	84125524
n×5	105156905

Division

n÷y

n÷2	10515690.5
n÷3	7010460.3333333
n÷3	5257845.25
n÷5	4206276.2

Exponentiation

n^y

n²	442318986767161
n³	9.3025791342341E+21
n⁴	1.9564608605473E+29
n⁵	4.1147073769758E+36

Nth Root

^y√n

²√n	4585.9983645876
³√n	276.02977432062
⁴√n	67.719999738538
⁵√n	29.145637443844

Divisors of 21031381

1, 7, 769, 3907, 5383, 27349, 3004483, 21031381

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21031380	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031381 can be divided by 8 positive divisors. The sum of these divisors (counting 21031381) is 1, the average is 0.125.

Base conversion 21031381

Base	System	Value
2	Binary	1010000001110100111010101
3	Ternary	1110120111122001
4	Quaternary	1100032213111
5	Quinary	20341001011
6	Senary	2030435301
8	Octal	120164725
10	Decimal	21031381
12	Duodecimal	7062b31
16	Hexadecimal	140e9d5
20	Vigesimal	6b8i91
36	Base36	cirx1

Cryptographic Hash Functions

md5	7cb8d9d9f998466a1ad374efa18a2f45
sha1	cb2338691585904b28e0f3fa14ef3cbe59b331c6
sha256	6e298ea7ee2d3df448191532e99868383d6f41cfe6727f1828107afe04462d48
sha512	8c8073273c7a534cf70925f375a69b933792d5246afae664753d4e0b41d4257806f9bbc219ecef6d0d7135bd789aa6aaa87b917fe2dd84ad52b141eb041b1d9b
ripemd-160	344074819da5d5f3111c0bea71127acd0e058e06

21031381 as geometric shapes

Circle

Radius = n

Diameter	42062762
Circumference	132144064.0889
Area	1.389586079371E+15

Sphere

Radius = n

Volume	3.896655235673E+22
Surface area	5.558344317484E+15
Circumference	132144064.0889

Square

Length = n

Perimeter	84125524
Area	442318986767161
Diagonal	29742864.245636

Cube

Length = n

Surface area	2653913920602966
Volume	9.3025791342341E+21
Space diagonal	36427420.445339

Equilateral Triangle

Length = n

Perimeter	63094143
Area	1.9152973955828E+14
Altitude	18213710.222669

Triangular Pyramid

Length = n

Surface area	1.9152973955828E+14
Volume	1.0963194647236E+21
Height	9914288.0818786