12912291 is an odd 8-digits composite number following 12912290
and preceding 12912292 . In scientific notation, it is written as 1.2912291 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 20 positive divisors.
There are 7377480 positive integers (up to 12912291) that are relatively prime to 12912291.
12912291 has 20 divisors, whose sum is 20209904
The reverse of 12912291 is 19221921
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twelve million nine hundred twelve thousand two hundred ninety-one
Scientific notation
1.2912291 × 10^7
Engineering notation
1.2912291 × 10^6
Prime Factorization
21 × 9 × 3 × 3 × 7591
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
4304097
Product of the distinct prime numbers
The prime factorization of 12912291 is 21 × 9 × 3 × 3 × 7591.
Since it has a total of 5 prime factors.
5 , 3 , 55 , 57 , 660 , 733 , 3017 , 7566 , 99512 , 34558 , 758261 , 299409 , 2369709 , 7243671 , 59261290 , 91199472 , 883796367 , 450800920 , 3279403561 , 5012300030
n×2
25824582
n×3
38736873
n×4
51649164
n×5
64561455
n÷2
6456145.5
n÷3
4304097
n÷3
3228072.75
n÷5
2582458.2
n2
166727258868681
n3
2.1528308841447E+21
n4
2.7797978849864E+28
n5
3.5893559212129E+35
2 √n
3593.3676405289
3 √n
234.60347193009
4 √n
59.944704858135
5 √n
26.436299354349
1 , 3 , 9 , 21 , 27 , 63 , 81 , 189 , 567 , 1701 , 7591 , 22773 , 68319 , 159411 , 204957 , 478233 , 614871 , 1434699 , 4304097 , 12912291
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12912290
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12912291 can be divided by 20 positive divisors.
The sum of these divisors (counting 12912291) is 1, the average is 0.05.
Base
System
Value
2
Binary
110001010000011010100011
3
Ternary
220022000100000
4
Quaternary
301100122203
5
Quinary
11301143131
6
Senary
1140431043
8
Octal
61203243
10
Decimal
12912291
12
Duodecimal
43a8483
16
Hexadecimal
c506a3
20
Vigesimal
40e0eb
36
Base36
7or6r
md5
e045ef69d66762f962dae2f2855e851b
sha1
34a503d47089a5eadcb55f646086cbe518736680
sha256
5a108e113208a2bb230cf6e4d747cb55c934ccfc8f5be97df080ede011393d59
sha512
78c30d119aa156bf68e27a24b50781a94193641021d92331f58e245d3b80bf6383a8ea93fbe0c4b1c6336082b66519799526f64f1dd59c4caf6becf3e4efcb89
ripemd-160
c05b7877b4a1b6bffac085d62bfd61425af2ce95
Diameter
25824582
Circumference
81130317.093227
Area
5.2378913161501E+14
Volume
9.0177569200671E+21
Surface area
2.09515652646E+15
Circumference
81130317.093227
Perimeter
51649164
Area
166727258868681
Diagonal
18260737.053508
Surface area
1000363553212086
Volume
2.1528308841447E+21
Space diagonal
22364744.054114
Perimeter
38736873
Area
72195020841811
Altitude
11182372.027057
Surface area
72195020841811
Volume
2.537135528211E+20
Height
6086912.3511694