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

21291265 (number)

21291265 is an odd 8-digits composite number following 21291264 and preceding 21291266. In scientific notation, it is written as 2.1291265 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 16483440 positive integers (up to 21291265) that are relatively prime to 21291265.

Interesting facts

21291265 has 8 divisors, whose sum is 26373888
The reverse of 21291265 is 56219212
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million two hundred ninety-one thousand two hundred sixty-five

Notation

Scientific notation	2.1291265 × 10^7
Engineering notation	2.1291265 × 10^6

Prime Factorization of 21291265

Prime Factorization 5 × 31 × 137363

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21291265	Product of the distinct prime numbers

The prime factorization of 21291265 is 5 × 31 × 137363. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 7, 62, 76, 230, 938, 7835, 1134, 96851, 56839, 286709, 718674, 910488, 5404157, 5151018, 91164785, 830167502, 53588487, 8409562975, 1444185935

Basic calculations (n = 21291265)

Multiplication

n×y

n×2	42582530
n×3	63873795
n×4	85165060
n×5	106456325

Division

n÷y

n÷2	10645632.5
n÷3	7097088.3333333
n÷3	5322816.25
n÷5	4258253

Exponentiation

n^y

n²	453317965300225
n³	9.6517129284679E+21
n⁴	2.0549717766394E+29
n⁵	4.3752948663949E+36

Nth Root

^y√n

²√n	4614.2458755467
³√n	277.16208631995
⁴√n	67.928240633383
⁵√n	29.217314344096

Divisors of 21291265

1, 5, 31, 155, 137363, 686815, 4258253, 21291265

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21291264	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21291265 can be divided by 8 positive divisors. The sum of these divisors (counting 21291265) is 1, the average is 0.125.

Base conversion 21291265

Base	System	Value
2	Binary	1010001001110000100000001
3	Ternary	1111001201010101
4	Quaternary	1101032010001
5	Quinary	20422310030
6	Senary	2040202401
8	Octal	121160401
10	Decimal	21291265
12	Duodecimal	7169401
16	Hexadecimal	144e101
20	Vigesimal	6d1835
36	Base36	cocg1

Cryptographic Hash Functions

md5	7d3663737d5b837c96f464cbddbbf94a
sha1	9994e1765bb975085b8f2f7320946508a783c53f
sha256	90bf097d4b496df6d62de498dbff8c545771a6fd4eb9f7b9e4903792cdae84c3
sha512	4b8a7f301f2615419423381d44f8f8eb014cd812bb085a9777f87ba907eaa559a1827f82c8f980415626a5c22ae7f138ebe6a26f94b09887e506d0001b1d03c6
ripemd-160	cf6f41ddc7a4a3f2499f1c07e6e7d8d1e4a3a3e3

21291265 as geometric shapes

Circle

Radius = n

Diameter	42582530
Circumference	133776963.41927
Area	1.4241403895275E+15

Sphere

Radius = n

Volume	4.0429000574176E+22
Surface area	5.6965615581098E+15
Circumference	133776963.41927

Square

Length = n

Perimeter	85165060
Area	453317965300225
Diagonal	30110395.72308

Cube

Length = n

Surface area	2719907791801350
Volume	9.6517129284679E+21
Space diagonal	36877552.737413

Equilateral Triangle

Length = n

Perimeter	63873795
Area	1.9629243697093E+14
Altitude	18438776.368706

Triangular Pyramid

Length = n

Surface area	1.9629243697093E+14
Volume	1.1374652769643E+21
Height	10036798.57436