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

256421 (number)

256421 is an odd 6-digits composite number following 256420 and preceding 256422. In scientific notation, it is written as 2.56421 × 10^5. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 233100 positive integers (up to 256421) that are relatively prime to 256421.

Interesting facts

256421 has 4 divisors, whose sum is 279744
The reverse of 256421 is 124652
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 20
Digital Root 2

Name

Name	two hundred fifty-six thousand four hundred twenty-one

Notation

Scientific notation	2.56421 × 10^5
Engineering notation	2.56421 × 10^3

Prime Factorization of 256421

Prime Factorization 11 × 23311

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	256421	Product of the distinct prime numbers

The prime factorization of 256421 is 11 × 23311. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 5, 4, 76, 102, 240, 8847, 3837, 45616, 84143, 521390, 814034, 3761764, 6469128, 55614327, 90068131, 217916552, 46594487, 2099313643, 552704823

Basic calculations (n = 256421)

Multiplication

n×y

n×2	512842
n×3	769263
n×4	1025684
n×5	1282105

Division

n÷y

n÷2	128210.5
n÷3	85473.666666667
n÷3	64105.25
n÷5	51284.2

Exponentiation

n^y

n²	65751729241
n³	16860124163706461
n⁴	4.3232898981818E+21
n⁵	1.1085823189817E+27

Nth Root

^y√n

²√n	506.38029187558
³√n	63.53083009085
⁴√n	22.502895188744
⁵√n	12.072319421193

Divisors of 256421

1, 11, 23311, 256421

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	-256420	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 256421 can be divided by 4 positive divisors. The sum of these divisors (counting 256421) is 1, the average is 0.25.

Base conversion 256421

Base	System	Value
2	Binary	111110100110100101
3	Ternary	111000202002
4	Quaternary	332212211
5	Quinary	31201141
6	Senary	5255045
8	Octal	764645
10	Decimal	256421
12	Duodecimal	104485
16	Hexadecimal	3e9a5
20	Vigesimal	1c111
36	Base36	5hut

Cryptographic Hash Functions

md5	ed78fec38aff551c6f32778f36aba4e7
sha1	cc8e39dd493c94da4583a2ec9ec96110fe3f0200
sha256	bd627a886a28f93383debdc8763a1b3b35dcb626764060b9fe6a4fbc41616041
sha512	02c11811f100f6f5f9baa470507126839295e7ec1e5d620f24b2a84dc32eb95aa8e02f4c38fbff032ff21d3cc169f6365fe8e97144be0b10c8308b7b72f90fa2
ripemd-160	0ec45212a17cad56ca70d36325496c6b9f9c4571

256421 as geometric shapes

Circle

Radius = n

Diameter	512842
Circumference	1611140.6596523
Area	206565149544.35

Sphere

Radius = n

Volume	7.0623522948416E+16
Surface area	826260598177.4
Circumference	1611140.6596523

Square

Length = n

Perimeter	1025684
Area	65751729241
Diagonal	362634.05587727

Cube

Length = n

Surface area	394510375446
Volume	16860124163706461
Space diagonal	444134.20012762

Equilateral Triangle

Length = n

Perimeter	769263
Area	28471333932.731
Altitude	222067.10006381

Triangular Pyramid

Length = n

Surface area	28471333932.731
Volume	1.9869846879673E+15
Height	120878.01862576