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

21000431 (number)

21000431 is an odd 8-digits composite number following 21000430 and preceding 21000432. In scientific notation, it is written as 2.1000431 × 10^7. The sum of its digits is 11. It has a total of 2 prime factors and 4 positive divisors. There are 20871432 positive integers (up to 21000431) that are relatively prime to 21000431.

Interesting facts

21000431 has 4 divisors, whose sum is 21129432
The reverse of 21000431 is 13400012
Previous prime number is 163

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 11
Digital Root 2

Name

Name	twenty-one million four hundred thirty-one

Notation

Scientific notation	2.1000431 × 10^7
Engineering notation	2.1000431 × 10^6

Prime Factorization of 21000431

Prime Factorization 163 × 128837

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000431	Product of the distinct prime numbers

The prime factorization of 21000431 is 163 × 128837. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 2, 45, 27, 309, 390, 2797, 3265, 1539, 3445, 749857, 571082, 7485709, 9728192, 20463920, 38035597, 758933054, 912165208, 5153998258, 352239992

Basic calculations (n = 21000431)

Multiplication

n×y

n×2	42000862
n×3	63001293
n×4	84001724
n×5	105002155

Division

n÷y

n÷2	10500215.5
n÷3	7000143.6666667
n÷3	5250107.75
n÷5	4200086.2

Exponentiation

n^y

n²	441018102185761
n³	9.261570224703E+21
n⁴	1.9449696645553E+29
n⁵	4.0845201237587E+36

Nth Root

^y√n

²√n	4582.6227206699
³√n	275.89430507968
⁴√n	67.695071612857
⁵√n	29.137054184959

Divisors of 21000431

1, 163, 128837, 21000431

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	-21000430	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 21000431 can be divided by 4 positive divisors. The sum of these divisors (counting 21000431) is 1, the average is 0.25.

Base conversion 21000431

Base	System	Value
2	Binary	1010000000111000011101111
3	Ternary	1110111221011202
4	Quaternary	1100013003233
5	Quinary	20334003211
6	Senary	2030040115
8	Octal	120070357
10	Decimal	21000431
12	Duodecimal	704903b
16	Hexadecimal	14070ef
20	Vigesimal	6b511b
36	Base36	ci41b

Cryptographic Hash Functions

md5	da5c6011737eefa2b2bc9f35d3040516
sha1	797c3a5f0e3b2e9d8ecd2fdb7f5838f18d79a890
sha256	bd94cc6f7d5972804efe679ac86f2c6d554eb153661c47133db4253984458d8c
sha512	1289cf634ec4b693f9424d0dc5d979855b57967fb9dd895e5bdfad4353c898381c1870659c474a63d333eaf15162084077623f41610c1dbd3d445a468b632255
ripemd-160	1077d43ae04ef9b3035bea8439ceb233e2b12fa3

21000431 as geometric shapes

Circle

Radius = n

Diameter	42000862
Circumference	131949599.50364
Area	1.3854992299269E+15

Sphere

Radius = n

Volume	3.8794774638177E+22
Surface area	5.5419969197076E+15
Circumference	131949599.50364

Square

Length = n

Perimeter	84001724
Area	441018102185761
Diagonal	29699094.33588

Cube

Length = n

Surface area	2646108613114566
Volume	9.261570224703E+21
Space diagonal	36373813.472844

Equilateral Triangle

Length = n

Perimeter	63001293
Area	1.9096644001084E+14
Altitude	18186906.736422

Triangular Pyramid

Length = n

Surface area	1.9096644001084E+14
Volume	1.0914865183872E+21
Height	9899698.1119601