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

21131221 (number)

21131221 is an odd 8-digits composite number following 21131220 and preceding 21131222. In scientific notation, it is written as 2.1131221 × 10^7. The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors. There are 19888192 positive integers (up to 21131221) that are relatively prime to 21131221.

Interesting facts

21131221 has 4 divisors, whose sum is 22374252
The reverse of 21131221 is 12213112
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4

Name

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

Notation

Scientific notation	2.1131221 × 10^7
Engineering notation	2.1131221 × 10^6

Prime Factorization of 21131221

Prime Factorization 17 × 1243013

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21131221	Product of the distinct prime numbers

The prime factorization of 21131221 is 17 × 1243013. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 9, 93, 59, 591, 168, 6402, 6322, 66138, 19300, 296551, 291962, 1807301, 6164232, 98818732, 79662957, 716479150, 342814746, 9951856346, 6673437051

Basic calculations (n = 21131221)

Multiplication

n×y

n×2	42262442
n×3	63393663
n×4	84524884
n×5	105656105

Division

n÷y

n÷2	10565610.5
n÷3	7043740.3333333
n÷3	5282805.25
n÷5	4226244.2

Exponentiation

n^y

n²	446528500950841
n³	9.4356924363909E+21
n⁴	1.9938770216141E+29
n⁵	4.2133055990548E+36

Nth Root

^y√n

²√n	4596.8707834787
³√n	276.46587372729
⁴√n	67.800227016424
⁵√n	29.173257033699

Divisors of 21131221

1, 17, 1243013, 21131221

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	-21131220	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 21131221 can be divided by 4 positive divisors. The sum of these divisors (counting 21131221) is 1, the average is 0.25.

Base conversion 21131221

Base	System	Value
2	Binary	1010000100110111111010101
3	Ternary	1110202120120211
4	Quaternary	1100212333111
5	Quinary	20402144341
6	Senary	2032525421
8	Octal	120467725
10	Decimal	21131221
12	Duodecimal	70b0871
16	Hexadecimal	1426fd5
20	Vigesimal	6c1811
36	Base36	ckwyd

Cryptographic Hash Functions

md5	b4f9198247f692774cf169670f49ec15
sha1	9621e956cfd8ac7757b475b64fc97a19be31476d
sha256	b3fbd68a24ef58739e16f06dbbe57b66a7bd462450bf30ba644a43d640da046e
sha512	499bd6f35eee6cea698f7035270ba4c40e9610e729b6493903b21b485af84675d3d893cb9e3b17f084be853047407ae6917b98ef3e38aa2692d555486c2b13e2
ripemd-160	d7e944db413189671be1bf383fec0499cea5e194

21131221 as geometric shapes

Circle

Radius = n

Diameter	42262442
Circumference	132771377.30996
Area	1.4028106582056E+15

Sphere

Radius = n

Volume	3.9524136052931E+22
Surface area	5.6112426328225E+15
Circumference	132771377.30996

Square

Length = n

Perimeter	84524884
Area	446528500950841
Diagonal	29884059.327703

Cube

Length = n

Surface area	2679171005705046
Volume	9.4356924363909E+21
Space diagonal	36600348.397966

Equilateral Triangle

Length = n

Perimeter	63393663
Area	1.9335251266861E+14
Altitude	18300174.198983

Triangular Pyramid

Length = n

Surface area	1.9335251266861E+14
Volume	1.1120070178271E+21
Height	9961353.1092344