12938961 is an odd 8-digits composite number following 12938960
and preceding 12938962 . In scientific notation, it is written as 1.2938961 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 7393680 positive integers (up to 12938961) that are relatively prime to 12938961.
12938961 has 4 divisors, whose sum is 13555124
The reverse of 12938961 is 16983921
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twelve million nine hundred thirty-eight thousand nine hundred sixty-one
Scientific notation
1.2938961 × 10^7
Engineering notation
1.2938961 × 10^6
Prime Factorization
21 × 616141
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12938961
Product of the distinct prime numbers
The prime factorization of 12938961 is 21 × 616141.
Since it has a total of 2 prime factors.
8 , 5 , 41 , 77 , 43 , 455 , 6590 , 9227 , 26076 , 61288 , 126545 , 462694 , 9618335 , 6372162 , 92781053 , 99155973 , 281720450 , 697430787 , 2032541714 , 1140068654
n×2
25877922
n×3
38816883
n×4
51755844
n×5
64694805
n÷2
6469480.5
n÷3
4312987
n÷3
3234740.25
n÷5
2587792.2
n2
167416711759521
n3
2.1661983042047E+21
n4
2.8028355376371E+28
n5
3.62657797109E+35
2 √n
3597.0767297905
3 √n
234.7648832998
4 √n
59.975634467594
5 √n
26.447211040194
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
-12938960
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 12938961 can be divided by 4 positive divisors.
The sum of these divisors (counting 12938961) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001010110111011010001
3
Ternary
220100100220210
4
Quaternary
301112323101
5
Quinary
11303021321
6
Senary
1141154333
8
Octal
61267321
10
Decimal
12938961
12
Duodecimal
43bb9a9
16
Hexadecimal
c56ed1
20
Vigesimal
40h781
36
Base36
7pbrl
md5
718954ad49817ba003b6d26c778dea46
sha1
2a721d67c8754e56154445cb504b33749a398f99
sha256
0441e972267eeeced06ff8e25d5b83a293fa23b36fd6c4ddaca6408fec4bcb0b
sha512
f1280ee73c025fde4d83a5b81178559f75bf6bf3534f4d0d6730d352bc4e6ce72e4dc300e9055a20b7c3016c153561397ad6d3c13076ead4ffab252ffa562662
ripemd-160
4e5deb2544ed6d086b0db59c26c321e90b53ed35
Diameter
25877922
Circumference
81297889.64537
Area
5.2595511175187E+14
Volume
9.0737502382775E+21
Surface area
2.1038204470075E+15
Circumference
81297889.64537
Perimeter
51755844
Area
167416711759521
Diagonal
18298454.129217
Surface area
1004500270557126
Volume
2.1661983042047E+21
Space diagonal
22410937.849152
Perimeter
38816883
Area
72493562700901
Altitude
11205468.924576
Surface area
72493562700901
Volume
2.5528891838299E+20
Height
6099484.7097388