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

21091251 (number)

21091251 is an odd 8-digits composite number following 21091250 and preceding 21091252. In scientific notation, it is written as 2.1091251 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 13998440 positive integers (up to 21091251) that are relatively prime to 21091251.

Interesting facts

21091251 has 8 divisors, whose sum is 28246464
The reverse of 21091251 is 15219012
Previous prime number is 227

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million ninety-one thousand two hundred fifty-one

Notation

Scientific notation	2.1091251 × 10^7
Engineering notation	2.1091251 × 10^6

Prime Factorization of 21091251

Prime Factorization 3 × 227 × 30971

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21091251	Product of the distinct prime numbers

The prime factorization of 21091251 is 3 × 227 × 30971. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 74, 81, 110, 247, 3937, 9712, 53002, 97899, 450462, 458772, 7955941, 7478427, 70807904, 78510206, 162100244, 247430607, 7907838870, 9783805334

Basic calculations (n = 21091251)

Multiplication

n×y

n×2	42182502
n×3	63273753
n×4	84365004
n×5	105456255

Division

n÷y

n÷2	10545625.5
n÷3	7030417
n÷3	5272812.75
n÷5	4218250.2

Exponentiation

n^y

n²	444840868745001
n³	9.3822504177589E+21
n⁴	1.9788339850581E+29
n⁵	4.173608426619E+36

Nth Root

^y√n

²√n	4592.5212029995
³√n	276.29145068448
⁴√n	67.768142980308
⁵√n	29.162212349343

Divisors of 21091251

1, 3, 227, 681, 30971, 92913, 7030417, 21091251

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	-21091250	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 21091251 can be divided by 8 positive divisors. The sum of these divisors (counting 21091251) is 1, the average is 0.125.

Base conversion 21091251

Base	System	Value
2	Binary	1010000011101001110110011
3	Ternary	1110200112202110
4	Quaternary	1100131032303
5	Quinary	20344410001
6	Senary	2032020403
8	Octal	120351663
10	Decimal	21091251
12	Duodecimal	7091703
16	Hexadecimal	141d3b3
20	Vigesimal	6bg82b
36	Base36	ck243

Cryptographic Hash Functions

md5	020bfae34a8b1bf6c11c8666cab888df
sha1	a8d4a071a712e78db848e535ae203d03feb75f37
sha256	0d2ab27e83c3c8703b1338749bcc25868b850b8810cb1d2e134924233ae64a5e
sha512	6f9cdb8928652b656d6a53638a71b64069a5de0d614549b9f6f21e193c61d34dc4e9087131ff98c85dcf8e72c587c40e906e48b14f2f9bfb893cb2c165e56023
ripemd-160	1e7653c58f5e1c889fb2f2c7534aa158fb39a35e

21091251 as geometric shapes

Circle

Radius = n

Diameter	42182502
Circumference	132520238.39324
Area	1.3975088052658E+15

Sphere

Radius = n

Volume	3.9300278648761E+22
Surface area	5.5900352210632E+15
Circumference	132520238.39324

Square

Length = n

Perimeter	84365004
Area	444840868745001
Diagonal	29827533.211615

Cube

Length = n

Surface area	2669045212470006
Volume	9.3822504177589E+21
Space diagonal	36531118.327188

Equilateral Triangle

Length = n

Perimeter	63273753
Area	1.9262174648735E+14
Altitude	18265559.163594

Triangular Pyramid

Length = n

Surface area	1.9262174648735E+14
Volume	1.1057088155313E+21
Height	9942511.0705384