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

21000251 (number)

21000251 is an odd 8-digits prime number following 21000250 and preceding 21000252. In scientific notation, it is written as 2.1000251 × 10^7. The sum of its digits is 11. It has a total of 1 prime factors and 2 positive divisors. There are 21000250 positive integers (up to 21000251) that are relatively prime to 21000251.

Interesting facts

21000251 has 2 divisors, whose sum is 21000252
The reverse of 21000251 is 15200012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 11
Digital Root 2

Name

Name	twenty-one million two hundred fifty-one

Notation

Scientific notation	2.1000251 × 10^7
Engineering notation	2.1000251 × 10^6

Prime Factorization of 21000251

Prime Factorization 21000251

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21000251	Product of the distinct prime numbers

The prime factorization of 21000251 is 21000251. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 3, 58, 76, 65, 353, 5802, 8752, 96635, 26196, 515004, 127870, 5297434, 726077, 78141079, 8448278, 550684987, 66206423, 5568100409, 2986999489

Basic calculations (n = 21000251)

Multiplication

n×y

n×2	42000502
n×3	63000753
n×4	84001004
n×5	105001255

Division

n÷y

n÷2	10500125.5
n÷3	7000083.6666667
n÷3	5250062.75
n÷5	4200050.2

Exponentiation

n^y

n²	441010542063001
n³	9.2613320769691E+21
n⁴	1.944902982107E+29
n⁵	4.0843450794896E+36

Nth Root

^y√n

²√n	4582.6030812192
³√n	275.89351682416
⁴√n	67.694926554501
⁵√n	29.137004236577

Divisors of 21000251

1, 21000251

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21000252	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10500126	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4582.6031903275	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.999999904763	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000251 can be divided by 2 positive divisors. The sum of these divisors (counting 21000251) is 21000252, the average is 10500126.

Base conversion 21000251

Base	System	Value
2	Binary	1010000000111000000111011
3	Ternary	1110111220221002
4	Quaternary	1100013000323
5	Quinary	20334002001
6	Senary	2030035215
8	Octal	120070073
10	Decimal	21000251
12	Duodecimal	7048b0b
16	Hexadecimal	140703b
20	Vigesimal	6b50cb
36	Base36	ci3wb

Cryptographic Hash Functions

md5	153b4afb08b8addc8f6d4a053decf3b2
sha1	4d7415e1d71b69484c049b62f9f397a5d6fd4337
sha256	bc84640dce9a0a31f76088cfe3e29f0f3a1efeb31f4b81e6faf7bad85b93dc35
sha512	3a0ada6c086b750d1cd8e3fc4b7e935ee786bba780641ac3a810847d2bb3d4ddffe2690b5134c3be7aa142e63083494f7293906124e8bfcdbb89d0a59cf6ea52
ripemd-160	89bf7dca9bb99f5c32960078192d82651b006bfc

21000251 as geometric shapes

Circle

Radius = n

Diameter	42000502
Circumference	131948468.53028
Area	1.3854754791008E+15

Sphere

Radius = n

Volume	3.8793777087282E+22
Surface area	5.5419019164031E+15
Circumference	131948468.53028

Square

Length = n

Perimeter	84001004
Area	441010542063001
Diagonal	29698839.777439

Cube

Length = n

Surface area	2646063252378006
Volume	9.2613320769691E+21
Space diagonal	36373501.703699

Equilateral Triangle

Length = n

Perimeter	63000753
Area	1.9096316638165E+14
Altitude	18186750.85185

Triangular Pyramid

Length = n

Surface area	1.9096316638165E+14
Volume	1.0914584524076E+21
Height	9899613.2591464