12938891 is an odd 8-digits composite number following 12938890
and preceding 12938892 . In scientific notation, it is written as 1.2938891 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 6 positive divisors.
There are 11090436 positive integers (up to 12938891) that are relatively prime to 12938891.
12938891 has 6 divisors, whose sum is 15051420
The reverse of 12938891 is 19883921
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twelve million nine hundred thirty-eight thousand eight hundred ninety-one
Scientific notation
1.2938891 × 10^7
Engineering notation
1.2938891 × 10^6
Prime Factorization
7 × 7 × 264059
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1848413
Product of the distinct prime numbers
The prime factorization of 12938891 is 7 × 7 × 264059.
Since it has a total of 3 prime factors.
3 , 8 , 26 , 38 , 547 , 702 , 3997 , 6736 , 18708 , 57714 , 29976 , 198968 , 693262 , 5642609 , 37869140 , 38392902 , 628882768 , 283968373 , 6969648799 , 3101610576
n×2
25877782
n×3
38816673
n×4
51755564
n×5
64694455
n÷2
6469445.5
n÷3
4312963.6666667
n÷3
3234722.75
n÷5
2587778.2
n2
167414900309881
n3
2.1661631468854E+21
n4
2.8027748845767E+28
n5
3.6264798729076E+35
2 √n
3597.066999654
3 √n
234.76445993836
4 √n
59.975553350128
5 √n
26.447182424159
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12938890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12938891 can be divided by 6 positive divisors.
The sum of these divisors (counting 12938891) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
110001010110111010001011
3
Ternary
220100100211012
4
Quaternary
301112322023
5
Quinary
11303021031
6
Senary
1141154135
8
Octal
61267213
10
Decimal
12938891
12
Duodecimal
43bb94b
16
Hexadecimal
c56e8b
20
Vigesimal
40h74b
36
Base36
7pbpn
md5
1b0ad102a7fbf061f89ca212a9825526
sha1
c552350f4b7d5a500a987484356f90f34e590f09
sha256
c3a02bb7d6f5a642301edb29f335a9386b315a55c5667255aaeb3444f79f3d24
sha512
8dd0d83b342329a0b88ed3d05c115329fc08dcc78864a0b15275485cf1347cb58980dd4d9184aaf92c5e48db8c621464082566b727c097b6a3717b7875c335a0
ripemd-160
a3311deab00e77f46d8a55bad8f411915f7852b3
Diameter
25877782
Circumference
81297449.822398
Area
5.2594942091499E+14
Volume
9.0736029716429E+21
Surface area
2.10379768366E+15
Circumference
81297449.822398
Perimeter
51755564
Area
167414900309881
Diagonal
18298355.134267
Surface area
1004489401859286
Volume
2.1661631468854E+21
Space diagonal
22410816.605596
Perimeter
38816673
Area
72492778320198
Altitude
11205408.302798
Surface area
72492778320198
Volume
2.5528477505318E+20
Height
6099451.7114224