12691391 is an odd 8-digits prime number following 12691390
and preceding 12691392 . In scientific notation, it is written as 1.2691391 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 12691390 positive integers (up to 12691391) that are relatively prime to 12691391.
12691391 has 2 divisors, whose sum is 12691392
The reverse of 12691391 is 19319621
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million six hundred ninety-one thousand three hundred ninety-one
Scientific notation
1.2691391 × 10^7
Engineering notation
1.2691391 × 10^6
Prime Factorization
12691391
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
12691391
Product of the distinct prime numbers
The prime factorization of 12691391 is 12691391.
Since it has a total of 1 prime factors.
3 , 4 , 81 , 47 , 779 , 258 , 8084 , 9728 , 8409 , 9593 , 129706 , 214198 , 4446784 , 8278208 , 74976341 , 50027650 , 746025981 , 426736707 , 4248295181 , 1304528695
n×2
25382782
n×3
38074173
n×4
50765564
n×5
63456955
n÷2
6345695.5
n÷3
4230463.6666667
n÷3
3172847.75
n÷5
2538278.2
n2
161071405514881
n3
2.0442201863089E+21
n4
2.5943997674539E+28
n5
3.2926541859067E+35
2 √n
3562.4978596485
3 √n
233.25792506542
4 √n
59.686664001672
5 √n
26.345220926125
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
12691392
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
6345696
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3562.4979999994
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998424129
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12691391 can be divided by 2 positive divisors.
The sum of these divisors (counting 12691391) is 12691392, the average is 6345696.
Base
System
Value
2
Binary
110000011010011110111111
3
Ternary
212212210022112
4
Quaternary
300122132333
5
Quinary
11222111031
6
Senary
1132004235
8
Octal
60323677
10
Decimal
12691391
12
Duodecimal
430067b
16
Hexadecimal
c1a7bf
20
Vigesimal
3j689b
36
Base36
7k0qn
md5
993a18ac8b79eaa04f8f1a2a13c62119
sha1
62db2fb2812410eae6aedd388fbaa996e3a2bc00
sha256
17e4bd7bcaf6f5c823f707807a60471d985756ae671708b16560887c57867ff8
sha512
8c8b088b49b02d400f126cbb35d3b795bf8f38d8d86ea2b14212490823bfa12cbd349e6496eec49af3ca214757660ab117dec10d133ab7feb06ab63c60257abf
ripemd-160
3f48d93a8cd79fde3eff715898c5ceb5d627b16a
Diameter
25382782
Circumference
79742361.458871
Area
5.0602074426893E+14
Volume
8.5628094928374E+21
Surface area
2.0240829770757E+15
Circumference
79742361.458871
Perimeter
50765564
Area
161071405514881
Diagonal
17948337.27758
Surface area
966428433089286
Volume
2.0442201863089E+21
Space diagonal
21982134.030722
Perimeter
38074173
Area
69745964499576
Altitude
10991067.015361
Surface area
69745964499576
Volume
2.4091365932958E+20
Height
5982779.0925266