131147981 is an odd 9-digits composite number following 131147980
and preceding 131147982 . In scientific notation, it is written as 1.31147981 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 131064864 positive integers (up to 131147981) that are relatively prime to 131147981.
131147981 has 4 divisors, whose sum is 131231100
The reverse of 131147981 is 189741131
Previous prime number is 1609
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred thirty-one million one hundred forty-seven thousand nine hundred eighty-one
Scientific notation
1.31147981 × 10^8
Engineering notation
1.31147981 × 10^6
Prime Factorization
1609 × 81509
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
131147981
Product of the distinct prime numbers
The prime factorization of 131147981 is 1609 × 81509.
Since it has a total of 2 prime factors.
3 , 9 , 49 , 97 , 660 , 656 , 5432 , 293 , 83334 , 30471 , 427939 , 845850 , 9364341 , 2243700 , 82563450 , 74178524 , 7709841 , 603132357 , 506237561 , 2316828028
n×2
262295962
n×3
393443943
n×4
524591924
n×5
655739905
n÷2
65573990.5
n÷3
43715993.666667
n÷3
32786995.25
n÷5
26229596.2
n2
17199792920376361
n3
2.2557181151255E+24
n4
2.9583287650383E+32
n5
3.8797884466899E+40
2 √n
11451.985897651
3 √n
508.0664722263
4 √n
107.01395188316
5 √n
42.029315963006
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
-131147980
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 131147981 can be divided by 4 positive divisors.
The sum of these divisors (counting 131147981) is 1, the average is 0.25.
Base
System
Value
2
Binary
111110100010010100011001101
3
Ternary
100010210000012122
4
Quaternary
13310102203031
5
Quinary
232033213411
6
Senary
21002542325
8
Octal
764224315
10
Decimal
131147981
12
Duodecimal
37b079a5
16
Hexadecimal
7d128cd
20
Vigesimal
20jd9j1
36
Base36
262yfh
md5
0ae704ce841b5ad9a72e05539e9389d0
sha1
5164aa2b1591d2f5e762207f5a827f7dacadf399
sha256
2d35bb30bad1dbafdae59a367165cd8b9b30f7f30ebe3731ab3f92f31333def9
sha512
01cf041c5d439ebcacc875e7d4e4ef08d11b9e4f486d10f98dfe96a32b252b2a22c18b4e56dceb79219683a88630cbd7270047a40ff8891e626d75d07fe5fce5
ripemd-160
cca0f8883abca2ebfde8527bb438506f8430ac1e
Diameter
262295962
Circumference
824027067.28547
Area
5.403474308192E+16
Volume
9.4487299453967E+24
Surface area
2.1613897232768E+17
Circumference
824027067.28547
Perimeter
524591924
Area
17199792920376361
Diagonal
185471253.40805
Surface area
103198757522258166
Volume
2.2557181151255E+24
Space diagonal
227154966.40208
Perimeter
393443943
Area
7.4477288044388E+15
Altitude
113577483.20104
Surface area
7.4477288044388E+15
Volume
2.6583892927509E+23
Height
61823751.136016