12642905 is an odd 8-digits composite number following 12642904
and preceding 12642906 . In scientific notation, it is written as 1.2642905 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 9156480 positive integers (up to 12642905) that are relatively prime to 12642905.
12642905 has 8 divisors, whose sum is 12926592
The reverse of 12642905 is 50924621
Previous prime number is 503
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twelve million six hundred forty-two thousand nine hundred five
Scientific notation
1.2642905 × 10^7
Engineering notation
1.2642905 × 10^6
Prime Factorization
55 × 503 × 457
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12642905
Product of the distinct prime numbers
The prime factorization of 12642905 is 55 × 503 × 457.
Since it has a total of 3 prime factors.
2 , 6 , 88 , 53 , 797 , 337 , 4993 , 1744 , 55920 , 27889 , 378912 , 772519 , 7692869 , 6218797 , 41664922 , 97180180 , 92410669 , 912576302 , 7947517457 , 1354816798
n×2
25285810
n×3
37928715
n×4
50571620
n×5
63214525
n÷2
6321452.5
n÷3
4214301.6666667
n÷3
3160726.25
n÷5
2528581
n2
159843046839025
n3
2.0208804560963E+21
n4
2.5549799622783E+28
n5
3.2302368939988E+35
2 √n
3555.6862909992
3 √n
232.96050095784
4 √n
59.629575639939
5 √n
26.325060316574
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12642904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12642905 can be divided by 8 positive divisors.
The sum of these divisors (counting 12642905) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000001110101001011001
3
Ternary
212210022210202
4
Quaternary
300032221121
5
Quinary
11214033110
6
Senary
1130551545
8
Octal
60165131
10
Decimal
12642905
12
Duodecimal
42985b5
16
Hexadecimal
c0ea59
20
Vigesimal
3j0755
36
Base36
7izbt
md5
919c335d6163d1205247082d55fc2129
sha1
b8503f3d09b09a7189c8974eb000e96442bb3bbd
sha256
4445e7915d25b64e10918d256ae92b35cb1297da080fe7df0bb0322548fd8048
sha512
254128a8b83203c07a35137a33bccfd9858d768f86aec5c513178efd702465444733e6f07a5177943482a929d94d12cbc23a06523a00c7582d262e8a27d0ea52
ripemd-160
2070d7d5dd102df1adbfccf814669b5d62e8f760
Diameter
25285810
Circumference
79437714.936067
Area
5.0216174167689E+14
Volume
8.4650442595406E+21
Surface area
2.0086469667076E+15
Circumference
79437714.936067
Perimeter
50571620
Area
159843046839025
Diagonal
17879767.718795
Surface area
959058281034150
Volume
2.0208804560963E+21
Space diagonal
21898153.815267
Perimeter
37928715
Area
69214069590451
Altitude
10949076.907633
Surface area
69214069590451
Volume
2.3816304574551E+20
Height
5959922.5729315