131661561 is an odd 9-digits composite number following 131661560
and preceding 131661562 . In scientific notation, it is written as 1.31661561 × 10^8.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 87747632 positive integers (up to 131661561) that are relatively prime to 131661561.
131661561 has 8 divisors, whose sum is 175602240
The reverse of 131661561 is 165166131
Previous prime number is 5783
Is Prime? no Number parity odd Number length 9 Sum of Digits 30 Digital Root 3
Name
one hundred thirty-one million six hundred sixty-one thousand five hundred sixty-one
Scientific notation
1.31661561 × 10^8
Engineering notation
1.31661561 × 10^6
Prime Factorization
3 × 5783 × 7589
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
131661561 Product of the distinct prime numbers
The prime factorization of 131661561 is 3 × 5783 × 7589.
Since it has a total of 3 prime factors.
6 , 10 , 73 , 39 , 276 , 340 , 2866 , 5118 , 79735 , 67953 , 735843 , 149372 , 8960083 , 3247699 , 62250947 , 59850137 , 873447234 , 160980853 , 702443626 , 6233789033
n×2
263323122
n×3
394984683
n×4
526646244
n×5
658307805
n÷2
65830780.5
n÷3
43887187
n÷3
32915390.25
n÷5
26332312.2
n2
17334766644956721
n3
2.2823224360457E+24
n4
3.004941346351E+32
n5
3.9563526837402E+40
2 √n11474.387173178
3 √n508.72881031865
4 √n107.11856595931
5 √n42.062182170267
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
-131661560 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 131661561 can be divided by 8 positive divisors.
The sum of these divisors (counting 131661561) is 1, the average is 0.125.
Base
System
Value
2
Binary
111110110001111111011111001
3
Ternary
100011202002201010
4
Quaternary
13312033323321
5
Quinary
232201132221
6
Senary
21021544133
8
Octal
766177371
10
Decimal
131661561
12
Duodecimal
38115049
16
Hexadecimal
7d8fef9
20
Vigesimal
212hdi1
36
Base36
26dypl
md5
a70f3f79a3d8b08d11b7c1e4511a26e4
sha1
3bda9f681789f4d8e6e1b99c6a2537ef0a9aca03
sha256
535fe4162665e4e8d2a4cbdc20b6f89dd10e40827c9c4ea2b44c2af8f986e054
sha512
926074bf898c7ec2813c1c0e96557c85e1670bca986a754fa397074e81236e7fa1221fd76a63e37826c8dadd317a33af1d2a4cd3614266106843120a39642282
ripemd-160
f403a47aebd2893c1aac7ea68107e96a11274764
Diameter
263323122
Circumference
827253985.59553
Area
5.4458775543489E+16
Volume
9.5601698642726E+24
Surface area
2.1783510217396E+17
Circumference
827253985.59553
Perimeter
526646244
Area
17334766644956721
Diagonal
186197565.20941
Surface area
104008599869740326
Volume
2.2823224360457E+24
Space diagonal
228044513.05583
Perimeter
394984683
Area
7.5061741416038E+15
Altitude
114022256.52791
Surface area
7.5061741416038E+15
Volume
2.6897427856369E+23
Height
62065855.069804