12618905 is an odd 8-digits composite number following 12618904
and preceding 12618906 . In scientific notation, it is written as 1.2618905 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 9202368 positive integers (up to 12618905) that are relatively prime to 12618905.
12618905 has 16 divisors, whose sum is 16511040
The reverse of 12618905 is 50981621
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million six hundred eighteen thousand nine hundred five
Scientific notation
1.2618905 × 10^7
Engineering notation
1.2618905 × 10^6
Prime Factorization
13 × 5 × 83 × 2339
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12618905
Product of the distinct prime numbers
The prime factorization of 12618905 is 13 × 5 × 83 × 2339.
Since it has a total of 4 prime factors.
2 , 10 , 31 , 66 , 474 , 797 , 1833 , 817 , 84105 , 4673 , 585441 , 195407 , 7896780 , 8951708 , 9589563 , 11365245 , 269030848 , 84910152 , 3547107894 , 8193315024
n×2
25237810
n×3
37856715
n×4
50475620
n×5
63094525
n÷2
6309452.5
n÷3
4206301.6666667
n÷3
3154726.25
n÷5
2523781
n2
159236763399025
n3
2.0093935898398E+21
n4
2.5356346817797E+28
n5
3.1996933164083E+35
2 √n
3552.3098119393
3 √n
232.81299810713
4 √n
59.60125679832
5 √n
26.315058157518
1 , 5 , 13 , 65 , 83 , 415 , 1079 , 2339 , 5395 , 11695 , 30407 , 152035 , 194137 , 970685 , 2523781 , 12618905
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12618904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12618905 can be divided by 16 positive divisors.
The sum of these divisors (counting 12618905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000001000110010011001
3
Ternary
212202002212212
4
Quaternary
300020302121
5
Quinary
11212301110
6
Senary
1130244505
8
Octal
60106231
10
Decimal
12618905
12
Duodecimal
4286735
16
Hexadecimal
c08c99
20
Vigesimal
3ih755
36
Base36
7igt5
md5
be7e81c6bfe7efbd90aaaa79ae1ddd2f
sha1
1671d97a48727ebda53692f3713ccee6c06bd565
sha256
03d276e8af1ec577610ec4482968a4cb3d287dfd86cf60606d5cbd54260ee196
sha512
d1a17eed99d3fee6e88ec40be52efd2a7d00cd1f71ba90c2e6783aaa4921734c2d4fe5e0b520d33ba97c53a18e0da22a81563c4f7f5c9ffad2e105b6651ff427
ripemd-160
dc1e9d5129e92558528ac62b3c2b73bcbf103d38
Diameter
25237810
Circumference
79286918.488695
Area
5.0025704607579E+14
Volume
8.4169281866814E+21
Surface area
2.0010281843032E+15
Circumference
79286918.488695
Perimeter
50475620
Area
159236763399025
Diagonal
17845826.593298
Surface area
955420580394150
Volume
2.0093935898398E+21
Space diagonal
21856584.595885
Perimeter
37856715
Area
68951541159984
Altitude
10928292.297942
Surface area
68951541159984
Volume
2.3680930557475E+20
Height
5948608.8644326