12981565 is an odd 8-digits composite number following 12981564
and preceding 12981566 . In scientific notation, it is written as 1.2981565 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 10368912 positive integers (up to 12981565) that are relatively prime to 12981565.
12981565 has 8 divisors, whose sum is 15602400
The reverse of 12981565 is 56518921
Previous prime number is 787
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million nine hundred eighty-one thousand five hundred sixty-five
Scientific notation
1.2981565 × 10^7
Engineering notation
1.2981565 × 10^6
Prime Factorization
5 × 787 × 3299
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12981565
Product of the distinct prime numbers
The prime factorization of 12981565 is 5 × 787 × 3299.
Since it has a total of 3 prime factors.
3 , 4 , 41 , 18 , 228 , 539 , 667 , 1469 , 54333 , 68754 , 223966 , 75845 , 7275892 , 826900 , 34309857 , 68442350 , 654827925 , 981897152 , 6090120770 , 4429685009
n×2
25963130
n×3
38944695
n×4
51926260
n×5
64907825
n÷2
6490782.5
n÷3
4327188.3333333
n÷3
3245391.25
n÷5
2596313
n2
168521029849225
n3
2.1876667028547E+21
n4
2.8399337501443E+28
n5
3.6866784573192E+35
2 √n
3602.9938939721
3 √n
235.02227041092
4 √n
60.024943931436
5 √n
26.464604645125
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
-12981564
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 12981565 can be divided by 8 positive divisors.
The sum of these divisors (counting 12981565) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100001010100111101
3
Ternary
220102112100201
4
Quaternary
301201110331
5
Quinary
11310402230
6
Senary
1142123501
8
Octal
61412475
10
Decimal
12981565
12
Duodecimal
4420591
16
Hexadecimal
c6153d
20
Vigesimal
412di5
36
Base36
7q8n1
md5
d91b382be48596eb4427e4e1ca8e687a
sha1
eddb852bf24a7b7b6ab0fc07c5e8009b890d246a
sha256
ca5782d851147ae2176e540a58da6fdb08c9d080006349651dabfbf714cc748b
sha512
31b1c8cfe2853d36abfa81fa368d813c657aa0d232f39dfa2b05dce28d58d4f2ad6378438268c0fea528102d475717a877d623dae04d887ce51a7c4e351a3bb9
ripemd-160
f83c28e6b6dab9e1eb6a838b615ba4237ea5f5e8
Diameter
25963130
Circumference
81565578.472197
Area
5.2942442934971E+14
Volume
9.1636768562549E+21
Surface area
2.1176977173988E+15
Circumference
81565578.472197
Perimeter
51926260
Area
168521029849225
Diagonal
18358705.283828
Surface area
1011126179095350
Volume
2.1876667028547E+21
Space diagonal
22484730.141758
Perimeter
38944695
Area
72971746460672
Altitude
11242365.070879
Surface area
72971746460672
Volume
2.5781899342742E+20
Height
6119568.4279426