12561909 is an odd 8-digits composite number following 12561908
and preceding 12561910 . In scientific notation, it is written as 1.2561909 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 8374604 positive integers (up to 12561909) that are relatively prime to 12561909.
12561909 has 4 divisors, whose sum is 16749216
The reverse of 12561909 is 90916521
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million five hundred sixty-one thousand nine hundred nine
Scientific notation
1.2561909 × 10^7
Engineering notation
1.2561909 × 10^6
Prime Factorization
3 × 4187303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12561909
Product of the distinct prime numbers
The prime factorization of 12561909 is 3 × 4187303.
Since it has a total of 2 prime factors.
1 , 10 , 45 , 50 , 844 , 347 , 6981 , 5984 , 70136 , 31080 , 355376 , 194682 , 1758528 , 715111 , 52497413 , 39196538 , 642651093 , 178724193 , 7119755382 , 5313878970
n×2
25123818
n×3
37685727
n×4
50247636
n×5
62809545
n÷2
6280954.5
n÷3
4187303
n÷3
3140477.25
n÷5
2512381.8
n2
157801557724281
n3
1.9822888081907E+21
n4
2.490133162021E+28
n5
3.128082617919E+35
2 √n
3544.2783468571
3 √n
232.46195238194
4 √n
59.533842030034
5 √n
26.291243568451
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12561908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12561909 can be divided by 4 positive divisors.
The sum of these divisors (counting 12561909) is 1, the average is 0.25.
Base
System
Value
2
Binary
101111111010110111110101
3
Ternary
212122012200220
4
Quaternary
233322313311
5
Quinary
11203440114
6
Senary
1125124553
8
Octal
57726765
10
Decimal
12561909
12
Duodecimal
4259759
16
Hexadecimal
bfadf5
20
Vigesimal
3ia4f9
36
Base36
7h8tx
md5
bceeeb2113dbaa0707ca7c1af6bea53a
sha1
1a60641b89b203aaf45448f9adf32a93b8c3a914
sha256
703a1d0860f5e1516054bf5cd23b0d8d1211f065033e5dfbe74a8e7cb8260e3b
sha512
c59c33ae6d3f1836a390a5ea811969c8b5d55f388b918fbe5cbfa7b8f06c8d92a6f4d873cd2507c688b5ed44bbc295ab038c14722915058eb33f7a7f3cfd8053
ripemd-160
7035723c7981356e1f6804b90a11743c13aec3fa
Diameter
25123818
Circumference
78928802.058927
Area
4.9574821447163E+14
Volume
8.3033919428067E+21
Surface area
1.9829928578865E+15
Circumference
78928802.058927
Perimeter
50247636
Area
157801557724281
Diagonal
17765222.077097
Surface area
946809346345686
Volume
1.9822888081907E+21
Space diagonal
21757864.628057
Perimeter
37685727
Area
68330078872992
Altitude
10878932.314028
Surface area
68330078872992
Volume
2.3361497642364E+20
Height
5921740.6923655