256420 is an even 6-digits composite number following 256419
and preceding 256421 . In scientific notation, it is written as 2.56420 × 10^5.
The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors.
There are 102560 positive integers (up to 256420) that are relatively prime to 256420.
256420 has 12 divisors, whose sum is 538524
The reverse of 256420 is 024652
Previous prime number is 5
Is Prime? no
Number parity even
Number length 6
Sum of Digits 19
Digital Root 1
Name
two hundred fifty-six thousand four hundred twenty
Scientific notation
2.56420 × 10^5
Engineering notation
2.56420 × 10^3
Prime Factorization
2 × 2 × 5 × 12821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128210
Product of the distinct prime numbers
The prime factorization of 256420 is 2 × 2 × 5 × 12821.
Since it has a total of 4 prime factors.
5 , 3 , 27 , 95 , 521 , 143 , 9767 , 8300 , 62680 , 25487 , 572720 , 307102 , 3508838 , 2965265 , 72724200 , 85734051 , 639086478 , 399212655 , 3824476236 , 6176745021
n×2
512840
n×3
769260
n×4
1025680
n×5
1282100
n÷2
128210
n÷3
85473.333333333
n÷3
64105
n÷5
51284
n2
65751216400
n3
16859926909288000
n4
4.3232224580796E+21
n5
1.1085607027008E+27
2 √n
506.37930447442
3 √n
63.530747504124
4 √n
22.502873249308
5 √n
12.072310005163
1 , 2 , 4 , 5 , 10 , 20 , 12821 , 25642 , 51284 , 64105 , 128210 , 256420
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-256419
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 256420 can be divided by 12 positive divisors.
The sum of these divisors (counting 256420) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111110100110100100
3
Ternary
111000202001
4
Quaternary
332212210
5
Quinary
31201140
6
Senary
5255044
8
Octal
764644
10
Decimal
256420
12
Duodecimal
104484
16
Hexadecimal
3e9a4
20
Vigesimal
1c110
36
Base36
5hus
md5
7158a6df993d0abb162a3bc4f459ed76
sha1
9ff29040ec842b9bf51b5cfd237f8b6cded3599c
sha256
ec4d2b64a618e159f5536301b36f3b5943cf50d909a215a43f93e1ea64d3cccc
sha512
69a61e20bb9877fb9e4462dc7959db74128951b2e0cbaed04314b68399fb3c876353206c9342895afbcf3a1c07b50d419a1c5d4d5809da6069545c23cfee276f
ripemd-160
cc5add77f9e22c5eed66d02a8f79ff5353bd1793
Diameter
512840
Circumference
1611134.376467
Area
206563538406.83
Volume
7.062269669104E+16
Surface area
826254153627.33
Circumference
1611134.376467
Perimeter
1025680
Area
65751216400
Diagonal
362632.64166371
Surface area
394507298400
Volume
16859926909288000
Space diagonal
444132.46807681
Perimeter
769260
Area
28471111866.064
Altitude
222066.23403841
Surface area
28471111866.064
Volume
1.9869614413112E+15
Height
120877.54722124