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

21031821 (number)

21031821 is an odd 8-digits composite number following 21031820 and preceding 21031822. In scientific notation, it is written as 2.1031821 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors. There are 13411464 positive integers (up to 21031821) that are relatively prime to 21031821.

Interesting facts

21031821 has 12 divisors, whose sum is 31700448
The reverse of 21031821 is 12813012
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9

Name

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

Notation

Scientific notation	2.1031821 × 10^7
Engineering notation	2.1031821 × 10^6

Prime Factorization of 21031821

Prime Factorization 3 × 3 × 23 × 101603

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	7010607	Product of the distinct prime numbers

The prime factorization of 21031821 is 3 × 3 × 23 × 101603. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 8, 98, 41, 231, 905, 2424, 6456, 93316, 3154, 886106, 814090, 1222723, 9147485, 33691676, 26886610, 714505023, 591532094, 9708577794, 2569514280

Basic calculations (n = 21031821)

Multiplication

n×y

n×2	42063642
n×3	63095463
n×4	84127284
n×5	105159105

Division

n÷y

n÷2	10515910.5
n÷3	7010607
n÷3	5257955.25
n÷5	4206364.2

Exponentiation

n^y

n²	442337494576041
n³	9.3031630075118E+21
n⁴	1.9566245910781E+29
n⁵	4.1151378163753E+36

Nth Root

^y√n

²√n	4586.0463364428
³√n	276.03169925768
⁴√n	67.720353930283
⁵√n	29.145759394686

Divisors of 21031821

1, 3, 9, 23, 69, 207, 101603, 304809, 914427, 2336869, 7010607, 21031821

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	-21031820	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 21031821 can be divided by 12 positive divisors. The sum of these divisors (counting 21031821) is 1, the average is 0.083333333333333.

Base conversion 21031821

Base	System	Value
2	Binary	1010000001110101110001101
3	Ternary	1110120112020100
4	Quaternary	1100032232031
5	Quinary	20341004241
6	Senary	2030441313
8	Octal	120165615
10	Decimal	21031821
12	Duodecimal	7063239
16	Hexadecimal	140eb8d
20	Vigesimal	6b8jb1
36	Base36	cis99

Cryptographic Hash Functions

md5	636ab6d9440b65235193f06840002135
sha1	652d16d4383466eef840a3436f6d271e572cdfe5
sha256	40ec9fe8fdc69ad7cb5456a86f26b417b2f0aa42feebc5b55d28e4c50085f0d4
sha512	ad0c017720dc2c9d878dcbe310ce7a3bef7641e2522210f3508c29a3289bb4d56b1a2b84de430797f422239a415d128b4e73133cee22336fe409ec0420cf8f86
ripemd-160	2c253f80bcaebd5424259a4dd4ba68c33148d065

21031821 as geometric shapes

Circle

Radius = n

Diameter	42063642
Circumference	132146828.69043
Area	1.3896442233674E+15

Sphere

Radius = n

Volume	3.8968998079396E+22
Surface area	5.5585768934696E+15
Circumference	132146828.69043

Square

Length = n

Perimeter	84127284
Area	442337494576041
Diagonal	29743486.499603

Cube

Length = n

Surface area	2654024967456246
Volume	9.3031630075118E+21
Space diagonal	36428182.547694

Equilateral Triangle

Length = n

Perimeter	63095463
Area	1.9153775367461E+14
Altitude	18214091.273847

Triangular Pyramid

Length = n

Surface area	1.9153775367461E+14
Volume	1.0963882748492E+21
Height	9914495.4998678