12639905 is an odd 8-digits composite number following 12639904
and preceding 12639906 . In scientific notation, it is written as 1.2639905 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 10111920 positive integers (up to 12639905) that are relatively prime to 12639905.
12639905 has 4 divisors, whose sum is 15167892
The reverse of 12639905 is 50993621
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twelve million six hundred thirty-nine thousand nine hundred five
Scientific notation
1.2639905 × 10^7
Engineering notation
1.2639905 × 10^6
Prime Factorization
5 × 2527981
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12639905
Product of the distinct prime numbers
The prime factorization of 12639905 is 5 × 2527981.
Since it has a total of 2 prime factors.
1 , 6 , 41 , 61 , 611 , 929 , 8340 , 6883 , 76140 , 97789 , 854042 , 990921 , 8924648 , 1409357 , 3184822 , 8533896 , 483639836 , 60825303 , 6070830192 , 846533732
n×2
25279810
n×3
37919715
n×4
50559620
n×5
63199525
n÷2
6319952.5
n÷3
4213301.6666667
n÷3
3159976.25
n÷5
2527981
n2
159767198409025
n3
2.0194422100062E+21
n4
2.5525557687469E+28
n5
3.2264062424162E+35
2 √n
3555.2644064823
3 √n
232.94207331565
4 √n
59.626037990817
5 √n
26.32381087781
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
-12639904
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 12639905 can be divided by 4 positive divisors.
The sum of these divisors (counting 12639905) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000001101111010100001
3
Ternary
212210011200122
4
Quaternary
300031322201
5
Quinary
11213434110
6
Senary
1130530025
8
Octal
60157241
10
Decimal
12639905
12
Duodecimal
4296915
16
Hexadecimal
c0dea1
20
Vigesimal
3ijjf5
36
Base36
7ix0h
md5
40e9677b3f31ad443ef116aed434610c
sha1
207e86469557bb0ad43562a48604eed4dba14ebd
sha256
0d0d3ce4944959f42e084c701acc77c7b7926965ce6087d5005daf537eb08a10
sha512
fa42a23c550d75efb19c94311d359f432602fd150599f1277fb9fb5a1050f576f94fdfffccd85a584b566c49fd324baad9f7ed331d2ebbb2a1b35b512d2d0441
ripemd-160
a5e23361713903608e0c1b6a563ea42cae61fd36
Diameter
25279810
Circumference
79418865.380146
Area
5.0192345680642E+14
Volume
8.4590197484063E+21
Surface area
2.0076938272257E+15
Circumference
79418865.380146
Perimeter
50559620
Area
159767198409025
Diagonal
17875525.078107
Surface area
958603190454150
Volume
2.0194422100062E+21
Space diagonal
21892957.662844
Perimeter
37919715
Area
69181226256842
Altitude
10946478.831422
Surface area
69181226256842
Volume
2.3799354681829E+20
Height
5958508.3593692