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

21000831 (number)

21000831 is an odd 8-digits composite number following 21000830 and preceding 21000832. In scientific notation, it is written as 2.1000831 × 10^7. The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors. There are 13134848 positive integers (up to 21000831) that are relatively prime to 21000831.

Interesting facts

21000831 has 16 divisors, whose sum is 29743200
The reverse of 21000831 is 13800012
Previous prime number is 809

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6

Name

Name	twenty-one million eight hundred thirty-one

Notation

Scientific notation	2.1000831 × 10^7
Engineering notation	2.1000831 × 10^6

Prime Factorization of 21000831

Prime Factorization 3 × 17 × 809 × 509

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21000831	Product of the distinct prime numbers

The prime factorization of 21000831 is 3 × 17 × 809 × 509. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 36, 45, 524, 177, 3684, 2083, 1574, 39589, 639609, 581403, 3839383, 1561589, 34533728, 82668761, 146504671, 639963354, 6894394305, 3203045096

Basic calculations (n = 21000831)

Multiplication

n×y

n×2	42001662
n×3	63002493
n×4	84003324
n×5	105004155

Division

n÷y

n÷2	10500415.5
n÷3	7000277
n÷3	5250207.75
n÷5	4200166.2

Exponentiation

n^y

n²	441034902690561
n³	9.2620994565059E+21
n⁴	1.9451178539127E+29
n⁵	4.0849091325104E+36

Nth Root

^y√n

²√n	4582.6663635923
³√n	275.89605674248
⁴√n	67.695393961423
⁵√n	29.137165180137

Divisors of 21000831

1, 3, 17, 51, 509, 809, 1527, 2427, 8653, 13753, 25959, 41259, 411781, 1235343, 7000277, 21000831

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21000830	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000831 can be divided by 16 positive divisors. The sum of these divisors (counting 21000831) is 1, the average is 0.0625.

Base conversion 21000831

Base	System	Value
2	Binary	1010000000111001001111111
3	Ternary	1110111221201120
4	Quaternary	1100013021333
5	Quinary	20334011311
6	Senary	2030042023
8	Octal	120071177
10	Decimal	21000831
12	Duodecimal	7049313
16	Hexadecimal	140727f
20	Vigesimal	6b521b
36	Base36	ci4cf

Cryptographic Hash Functions

md5	3ef84ef8eccb36547992632305f57b6e
sha1	288dced5ebd6a66656cd373cde1b515a00f7aaae
sha256	d84fb906f24ac0ea28225d036423ae3d69d735f5b63a80febd0ac9feeb2fb90b
sha512	7e60de17fbeb359551d0cce632461c85cdfee58be0fa82ca45cb4a91438d4be99646eaf15b64964a3b92eb49257fea997a824b3f53a7de17127783812b30159c
ripemd-160	54b275ab37093eaecbb64b8f5cae5a3b1b5e341d

21000831 as geometric shapes

Circle

Radius = n

Diameter	42001662
Circumference	131952112.77776
Area	1.3855520102694E+15

Sphere

Radius = n

Volume	3.8796991479169E+22
Surface area	5.5422080410774E+15
Circumference	131952112.77776

Square

Length = n

Perimeter	84003324
Area	441034902690561
Diagonal	29699660.021305

Cube

Length = n

Surface area	2646209416143366
Volume	9.2620994565059E+21
Space diagonal	36374506.293168

Equilateral Triangle

Length = n

Perimeter	63002493
Area	1.9097371484281E+14
Altitude	18187253.146584

Triangular Pyramid

Length = n

Surface area	1.9097371484281E+14
Volume	1.0915488889533E+21
Height	9899886.6737684