1256913121 is an odd 10-digits prime number following 1256913120
and preceding 1256913122 . In scientific notation, it is written as 1.256913121 × 10^9.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 1256913120 positive integers (up to 1256913121) that are relatively prime to 1256913121.
1256913121 has 2 divisors, whose sum is 1256913122
The reverse of 1256913121 is 1213196521
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 31
Digital Root 4
Name
one billion two hundred fifty-six million nine hundred thirteen thousand one hundred twenty-one
Scientific notation
1.256913121 × 10^9
Engineering notation
1.256913121 × 10^9
Prime Factorization
1256913121
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1256913121
Product of the distinct prime numbers
The prime factorization of 1256913121 is 1256913121.
Since it has a total of 1 prime factors.
5 , 3 , 56 , 10 , 514 , 204 , 6696 , 3474 , 75741 , 9311 , 533813 , 316805 , 8320657 , 9614123 , 86212652 , 70127560 , 457891807 , 204839546 , 6231516635 , 9142659919
n×2
2513826242
n×3
3770739363
n×4
5027652484
n×5
6284565605
n÷2
628456560.5
n÷3
418971040.33333
n÷3
314228280.25
n÷5
251382624.2
n2
1579830593741960641
n3
1.9857098022315E+27
n4
2.4958647049231E+36
n5
3.1370850958586E+45
2 √n
35452.97055255
3 √n
1079.1995443387
4 √n
188.28959225765
5 √n
66.048209979093
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1256913122
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
628456561
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
35452.970566654
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999984088
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1256913121 can be divided by 2 positive divisors.
The sum of these divisors (counting 1256913121) is 1256913122, the average is 628456561.
Base
System
Value
2
Binary
1001010111010101111100011100001
3
Ternary
10020121002210122211
4
Quaternary
1022322233203201
5
Quinary
10033232204441
6
Senary
324420002121
8
Octal
11272574341
10
Decimal
1256913121
12
Duodecimal
2b0b30341
16
Hexadecimal
4aeaf8e1
20
Vigesimal
jcfe2g1
36
Base36
ksc0dd
md5
4478505523e16566d2b4896cad42f7ca
sha1
1a2d86d13b5f6ddcd03a8d0a88ccca1ffbb20eb2
sha256
5508b5754b9fcf22376656b85c2df71f8e3059353e2e353da6176cba2c6eb307
sha512
8f78796879e0f55f8703c439a1eb06ff048d33afeceaa21e7be62d82a985d6aac40c6927020ffbfc8f9c6c22f8aaf72469cc063ae9cf745b31fe0bdcf1520caf
ripemd-160
35e85350ec50e0da774e5be56967ff54a2691887
Diameter
2513826242
Circumference
7897418054.2684
Area
4.9631841872161E+18
Volume
8.3177217691356E+27
Surface area
1.9852736748865E+19
Circumference
7897418054.2684
Perimeter
5027652484
Area
1579830593741960641
Diagonal
1777543582.4429
Surface area
9.4789835624518E+18
Volume
1.9857098022315E+27
Space diagonal
2177037386.272
Perimeter
3770739363
Area
6.840867139282E+17
Altitude
1088518693.136
Surface area
6.840867139282E+17
Volume
2.3401814443775E+26
Height
592514527.48097