12856721 is an odd 8-digits prime number following 12856720
and preceding 12856722 . In scientific notation, it is written as 1.2856721 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 12856720 positive integers (up to 12856721) that are relatively prime to 12856721.
12856721 has 2 divisors, whose sum is 12856722
The reverse of 12856721 is 12765821
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million eight hundred fifty-six thousand seven hundred twenty-one
Scientific notation
1.2856721 × 10^7
Engineering notation
1.2856721 × 10^6
Prime Factorization
12856721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
12856721
Product of the distinct prime numbers
The prime factorization of 12856721 is 12856721.
Since it has a total of 1 prime factors.
8 , 3 , 26 , 51 , 595 , 494 , 8147 , 2328 , 80936 , 70769 , 476707 , 651675 , 7273475 , 1671960 , 7677169 , 38313541 , 768935827 , 215108741 , 1971661467 , 710532211
n×2
25713442
n×3
38570163
n×4
51426884
n×5
64283605
n÷2
6428360.5
n÷3
4285573.6666667
n÷3
3214180.25
n÷5
2571344.2
n2
165295274871841
n3
2.1251552316456E+21
n4
2.7322527894957E+28
n5
3.5127811816019E+35
2 √n
3585.6270023526
3 √n
234.26643744897
4 √n
59.880105229973
5 √n
26.413505558224
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
12856722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
6428361
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3585.6271417982
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998444394
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12856721 can be divided by 2 positive divisors.
The sum of these divisors (counting 12856721) is 12856722, the average is 6428361.
Base
System
Value
2
Binary
110001000010110110010001
3
Ternary
220012012002212
4
Quaternary
301002312101
5
Quinary
11242403341
6
Senary
1135321505
8
Octal
61026621
10
Decimal
12856721
12
Duodecimal
4380295
16
Hexadecimal
c42d91
20
Vigesimal
4071g1
36
Base36
7nkb5
md5
ceebc114ac59632df1a2ab1687c6ebff
sha1
e0a0bee8e9abb8d894c0516c113c8832ab6094d4
sha256
5bcaf76e84f902d16ca5b14d640b9506211fec71f54147a366edb98d554c66cd
sha512
982110105d5fbf2cd66bd7d7f19cb2a13c88a2750bf88b137df3fef161b133cd0c9b0b1464e2114bebbc3138d62559c8dbdedaf838ec3d825db48f1fd96b8ad9
ripemd-160
cdf7d6f1fa5307774e3a17ad51fa59199bcd65a7
Diameter
25713442
Circumference
80781160.485707
Area
5.1929042121048E+14
Volume
8.9018294179675E+21
Surface area
2.0771616848419E+15
Circumference
80781160.485707
Perimeter
51426884
Area
165295274871841
Diagonal
18182149.205847
Surface area
991771649231046
Volume
2.1251552316456E+21
Space diagonal
22268493.990738
Perimeter
38570163
Area
71574953582273
Altitude
11134246.995369
Surface area
71574953582273
Volume
2.5045194589511E+20
Height
6060716.401949