131491 is an odd 6-digits composite number following 131490
and preceding 131492 . In scientific notation, it is written as 1.31491 × 10^5.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 125752 positive integers (up to 131491) that are relatively prime to 131491.
131491 has 4 divisors, whose sum is 137232
The reverse of 131491 is 194131
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 19
Digital Root 1
Name
one hundred thirty-one thousand four hundred ninety-one
Scientific notation
1.31491 × 10^5
Engineering notation
1.31491 × 10^3
Prime Factorization
23 × 5717
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
131491
Product of the distinct prime numbers
The prime factorization of 131491 is 23 × 5717.
Since it has a total of 2 prime factors.
1 , 9 , 72 , 99 , 326 , 655 , 89 , 8553 , 83361 , 28669 , 768081 , 9642 , 1721272 , 1260196 , 85802577 , 30868444 , 214474615 , 938106985 , 6981732280 , 3036108789
n×2
262982
n×3
394473
n×4
525964
n×5
657455
n÷2
65745.5
n÷3
43830.333333333
n÷3
32872.75
n÷5
26298.2
n2
17289883081
n3
2273464016203771
n4
2.9894005695465E+20
n5
3.9307927029024E+25
2 √n
362.61687770979
3 √n
50.850903777106
4 √n
19.042501876324
5 √n
10.562803620842
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
-131490
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 131491 can be divided by 4 positive divisors.
The sum of these divisors (counting 131491) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000000110100011
3
Ternary
20200101001
4
Quaternary
200012203
5
Quinary
13201431
6
Senary
2452431
8
Octal
400643
10
Decimal
131491
12
Duodecimal
64117
16
Hexadecimal
201a3
20
Vigesimal
g8eb
36
Base36
2tgj
md5
58a69ba617189250cbf22fdd02dd4ce4
sha1
50b320f1276ac4c53510ed74e1c98b21303688d2
sha256
d0536ee9b3a95e604e8e355fd959ca2aaa2c0b296d2c421b802dedfe3934de1f
sha512
267e79e413bc1465d190117af5148f6d4ec41b5339f42f8d921faaebf1a511f221111065ce4cd9f56e8a0cce701c905a87b437e2558f4a2c64569da18e1d016e
ripemd-160
7fa7783697c7833415c2833ee2ab43bdc0f5edc9
Diameter
262982
Circumference
826182.31922635
Area
54317769668.696
Volume
9.5230638020087E+15
Surface area
217271078674.78
Circumference
826182.31922635
Perimeter
525964
Area
17289883081
Diagonal
185956.35553
Surface area
103739298486
Volume
2273464016203771
Space diagonal
227749.09273804
Perimeter
394473
Area
7486738988.3044
Altitude
113874.54636902
Surface area
7486738988.3044
Volume
2.6793030377355E+14
Height
61985.451843334