13012905 is an odd 8-digits composite number following 13012904
and preceding 13012906 . In scientific notation, it is written as 1.3012905 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 6531840 positive integers (up to 13012905) that are relatively prime to 13012905.
13012905 has 8 divisors, whose sum is 17555008
The reverse of 13012905 is 50921031
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
thirteen million twelve thousand nine hundred five
Scientific notation
1.3012905 × 10^7
Engineering notation
1.3012905 × 10^6
Prime Factorization
85 × 3 × 51031
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
13012905
Product of the distinct prime numbers
The prime factorization of 13012905 is 85 × 3 × 51031.
Since it has a total of 3 prime factors.
4 , 7 , 79 , 91 , 713 , 975 , 8415 , 5571 , 62223 , 99186 , 132085 , 454186 , 8572610 , 8632305 , 57099176 , 68978502 , 152777320 , 201815361 , 1385584476 , 6080631491
n×2
26025810
n×3
39038715
n×4
52051620
n×5
65064525
n÷2
6506452.5
n÷3
4337635
n÷3
3253226.25
n÷5
2602581
n2
169335696539025
n3
2.2035493321712E+21
n4
2.8674578122357E+28
n5
3.7313956102131E+35
2 √n
3607.3404330615
3 √n
235.21124810268
4 √n
60.061139125573
5 √n
26.47737045471
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
-13012904
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 13012905 can be divided by 8 positive divisors.
The sum of these divisors (counting 13012905) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001101000111110101001
3
Ternary
220111010100110
4
Quaternary
301220332221
5
Quinary
11312403110
6
Senary
1142524533
8
Octal
61507651
10
Decimal
13012905
12
Duodecimal
4436749
16
Hexadecimal
c68fa9
20
Vigesimal
416c55
36
Base36
7qwtl
md5
a6d69eb1ca7fc1804f7855591e6caef6
sha1
a4dccbbb4f788978bec3fd12a093a408aa8b340f
sha256
efbaa952e0392c4686f1542020963bc9df2fde21dbc10a90dc498a48527e9d1f
sha512
a71d1feb016f883aa6baba29563e1b852197997195ee83a6377d11c636d7a25edd0e93233a29350902c350934f90dfb12d781041ad18a84c238ee54df3f22d32
ripemd-160
975bda8b267f28b1ce7ab3d49704aa4b5b182b67
Diameter
26025810
Circumference
81762493.499724
Area
5.3198378023751E+14
Volume
9.2302058583622E+21
Surface area
2.12793512095E+15
Circumference
81762493.499724
Perimeter
52051620
Area
169335696539025
Diagonal
18403026.736873
Surface area
1016014179234150
Volume
2.2035493321712E+21
Space diagonal
22539012.614067
Perimeter
39038715
Area
73324507485164
Altitude
11269506.307034
Surface area
73324507485164
Volume
2.5969077924289E+20
Height
6134342.2456242