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

21131261 (number)

21131261 is an odd 8-digits composite number following 21131260 and preceding 21131262. In scientific notation, it is written as 2.1131261 × 10^7. The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors. There are 21050652 positive integers (up to 21131261) that are relatively prime to 21131261.

Interesting facts

21131261 has 4 divisors, whose sum is 21211872
The reverse of 21131261 is 16213112
Previous prime number is 263

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8

Name

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

Notation

Scientific notation	2.1131261 × 10^7
Engineering notation	2.1131261 × 10^6

Prime Factorization of 21131261

Prime Factorization 263 × 80347

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21131261	Product of the distinct prime numbers

The prime factorization of 21131261 is 263 × 80347. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 7, 15, 58, 435, 268, 2041, 8642, 11647, 31948, 982352, 950203, 8873703, 7266630, 57946435, 19690873, 872823070, 988144367, 1461110537, 3344787968

Basic calculations (n = 21131261)

Multiplication

n×y

n×2	42262522
n×3	63393783
n×4	84525044
n×5	105656305

Division

n÷y

n÷2	10565630.5
n÷3	7043753.6666667
n÷3	5282815.25
n÷5	4226252.2

Exponentiation

n^y

n²	446530191450121
n³	9.4357460199125E+21
n⁴	1.9938921187648E+29
n⁵	4.2133454767462E+36

Nth Root

^y√n

²√n	4596.8751342624
³√n	276.46604817104
⁴√n	67.800259101735
⁵√n	29.173268078299

Divisors of 21131261

1, 263, 80347, 21131261

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	-21131260	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 21131261 can be divided by 4 positive divisors. The sum of these divisors (counting 21131261) is 1, the average is 0.25.

Base conversion 21131261

Base	System	Value
2	Binary	1010000100110111111111101
3	Ternary	1110202120122022
4	Quaternary	1100212333331
5	Quinary	20402200021
6	Senary	2032525525
8	Octal	120467775
10	Decimal	21131261
12	Duodecimal	70b08a5
16	Hexadecimal	1426ffd
20	Vigesimal	6c1831
36	Base36	ckwzh

Cryptographic Hash Functions

md5	06bd412eeaeaeb397fb21ccbabf0ae02
sha1	8962ceca66597271c937ed9540543a8a948ec65f
sha256	69b7160c88406d750ad5391597fbcca6002c785c827b013be704a3946d12368f
sha512	e098fc0cbeb58ec82f3cea0874252bfef6875e344a65dd90f65a1d7dbf5936e69de1cb007b3767c8b951c3e54c2e962cc8ca21a2020e67c42f7db56abd8a91c9
ripemd-160	b1d023982a06b5fa86575cebf6b13bc7705ae88b

21131261 as geometric shapes

Circle

Radius = n

Diameter	42262522
Circumference	132771628.63738
Area	1.4028159690657E+15

Sphere

Radius = n

Volume	3.9524360503062E+22
Surface area	5.611263876263E+15
Circumference	132771628.63738

Square

Length = n

Perimeter	84525044
Area	446530191450121
Diagonal	29884115.896246

Cube

Length = n

Surface area	2679181148700726
Volume	9.4357460199125E+21
Space diagonal	36600417.679999

Equilateral Triangle

Length = n

Perimeter	63393783
Area	1.9335324467627E+14
Altitude	18300208.839999

Triangular Pyramid

Length = n

Surface area	1.9335324467627E+14
Volume	1.1120133327057E+21
Height	9961371.9654152