12918087 is an odd 8-digits composite number following 12918086
and preceding 12918088 . In scientific notation, it is written as 1.2918087 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 6813504 positive integers (up to 12918087) that are relatively prime to 12918087.
12918087 has 8 divisors, whose sum is 13881120
The reverse of 12918087 is 78081921
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million nine hundred eighteen thousand eighty-seven
Scientific notation
1.2918087 × 10^7
Engineering notation
1.2918087 × 10^6
Prime Factorization
21 × 39 × 15773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12918087
Product of the distinct prime numbers
The prime factorization of 12918087 is 21 × 39 × 15773.
Since it has a total of 3 prime factors.
3 , 2 , 75 , 38 , 349 , 57 , 514 , 527 , 51647 , 27742 , 271052 , 226754 , 7934913 , 2502858 , 47182749 , 13697727 , 259818585 , 110501148 , 9810736390 , 4651892274
n×2
25836174
n×3
38754261
n×4
51672348
n×5
64590435
n÷2
6459043.5
n÷3
4306029
n÷3
3229521.75
n÷5
2583617.4
n2
166876971739569
n3
2.1557312392283E+21
n4
2.7847923696969E+28
n5
3.5974190108681E+35
2 √n
3594.174035853
3 √n
234.63856919568
4 √n
59.951430640586
5 √n
26.438672245217
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
-12918086
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 12918087 can be divided by 8 positive divisors.
The sum of these divisors (counting 12918087) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010001110101000111
3
Ternary
220022022021200
4
Quaternary
301101311013
5
Quinary
11301334322
6
Senary
1140513543
8
Octal
61216507
10
Decimal
12918087
12
Duodecimal
43ab8b3
16
Hexadecimal
c51d47
20
Vigesimal
40ef47
36
Base36
7ovnr
md5
3c743a7abe1484c312b719f63ab7c20f
sha1
87e678aa37a1947b3b33ad2c20769429e5f92f06
sha256
77fc8b3e739cd06828035f4e93a022f260a66a8d222fca26216f65674466f9ca
sha512
762497fae39997c73afa4c9df3b831b0c19ff5bf96e2fb4baa6589f6f0655b8df667df57a45075e0aba7c84032a4b895430957064a3d12426f03f0098960a203
ripemd-160
115fa0a1c21864ca082afbee21d408b20275b214
Diameter
25836174
Circumference
81166734.435268
Area
5.2425946847034E+14
Volume
9.0299058990315E+21
Surface area
2.0970378738814E+15
Circumference
81166734.435268
Perimeter
51672348
Area
166876971739569
Diagonal
18268933.835316
Surface area
1001261830437414
Volume
2.1557312392283E+21
Space diagonal
22374783.020595
Perimeter
38754261
Area
72259848416542
Altitude
11187391.510298
Surface area
72259848416542
Volume
2.5405536294567E+20
Height
6089644.6117719