13012981 is an odd 8-digits composite number following 13012980
and preceding 13012982 . In scientific notation, it is written as 1.3012981 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 12792364 positive integers (up to 13012981) that are relatively prime to 13012981.
13012981 has 4 divisors, whose sum is 13233600
The reverse of 13012981 is 18921031
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
thirteen million twelve thousand nine hundred eighty-one
Scientific notation
1.3012981 × 10^7
Engineering notation
1.3012981 × 10^6
Prime Factorization
59 × 220559
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13012981
Product of the distinct prime numbers
The prime factorization of 13012981 is 59 × 220559.
Since it has a total of 2 prime factors.
3 , 3 , 25 , 15 , 437 , 956 , 2967 , 7727 , 59754 , 59117 , 436483 , 411143 , 7152240 , 1473993 , 56075089 , 3471493 , 47882036 , 116310378 , 9844029080 , 6855163983
n×2
26025962
n×3
39038943
n×4
52051924
n×5
65064905
n÷2
6506490.5
n÷3
4337660.3333333
n÷3
3253245.25
n÷5
2602596.2
n2
169337674506361
n3
2.2035879409355E+21
n4
2.8675248007222E+28
n5
3.7315045748827E+35
2 √n
3607.3509671226
3 √n
235.21170600761
4 √n
60.061226819992
5 √n
26.477401382093
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
-13012980
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 13012981 can be divided by 4 positive divisors.
The sum of these divisors (counting 13012981) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001101000111111110101
3
Ternary
220111010110021
4
Quaternary
301220333311
5
Quinary
11312403411
6
Senary
1142525141
8
Octal
61507765
10
Decimal
13012981
12
Duodecimal
44367b1
16
Hexadecimal
c68ff5
20
Vigesimal
416c91
36
Base36
7qwvp
md5
43afe8e7a57ac74636fa4f2f1fb23846
sha1
8b724b6c11674f6bc6139b5392ed0cfa14aeee28
sha256
94e00669d315a0f678450b76663419558792c4caa42c0d175893afc190b20c85
sha512
70c99f83d83580b56099e5b74c6d1a23e67946cf3c367a8f6705c7cfa6fae6b6cce6fb09962efa2f006512f775ee93ef8abeaf256b98afa5827e32f630aeb48e
ripemd-160
1a69685ed794b8222b8c43f53a4e989b54b27360
Diameter
26025962
Circumference
81762971.021807
Area
5.3198999420516E+14
Volume
9.2303675823759E+21
Surface area
2.1279599768207E+15
Circumference
81762971.021807
Perimeter
52051924
Area
169337674506361
Diagonal
18403134.217103
Surface area
1016026047038166
Volume
2.2035879409355E+21
Space diagonal
22539144.249928
Perimeter
39038943
Area
73325363970145
Altitude
11269572.124964
Surface area
73325363970145
Volume
2.5969532932939E+20
Height
6134378.0723678