31728131 is an odd 8-digits prime number following 31728130
and preceding 31728132 . In scientific notation, it is written as 3.1728131 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 31728130 positive integers (up to 31728131) that are relatively prime to 31728131.
31728131 has 2 divisors, whose sum is 31728132
The reverse of 31728131 is 13182713
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 26 Digital Root 8
Name
thirty-one million seven hundred twenty-eight thousand one hundred thirty-one
Scientific notation
3.1728131 × 10^7
Engineering notation
3.1728131 × 10^6
Prime Factorization
31728131
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
31728131 Product of the distinct prime numbers
The prime factorization of 31728131 is 31728131.
Since it has a total of 1 prime factors.
5 , 9 , 10 , 54 , 132 , 111 , 2441 , 2121 , 56417 , 82752 , 241767 , 593752 , 7840714 , 732084 , 66542991 , 60720215 , 140596076 , 70268288 , 7620455005 , 4351184380
n×2
63456262
n×3
95184393
n×4
126912524
n×5
158640655
n÷2
15864065.5
n÷3
10576043.666667
n÷3
7932032.75
n÷5
6345626.2
n2
1006674296753161
n3
3.1939893961717E+22
n4
1.0133931397435E+30
n5
3.2153070292282E+37
2 √n5632.7729405684
3 √n316.5785580664
4 √n75.051801714339
5 √n31.643819457462
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
31728132 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
15864066 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5632.7730293347 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999369645 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31728131 can be divided by 2 positive divisors.
The sum of these divisors (counting 31728131) is 31728132, the average is 15864066.
Base
System
Value
2
Binary
1111001000010001000000011
3
Ternary
2012200221210222
4
Quaternary
1321002020003
5
Quinary
31110300011
6
Senary
3052013255
8
Octal
171021003
10
Decimal
31728131
12
Duodecimal
a76122b
16
Hexadecimal
1e42203
20
Vigesimal
9i606b
36
Base36
iw1kz
md5
70d6f0498816e3e14fa7c9ab0a89ca72
sha1
47fe9df14a6aaa5a23a52d17934515054879a386
sha256
daae0d58527c04405b716e0e0d9b6546c0bed4453afe7e048a5fbeda6501b25c
sha512
c6b78e437d55b28f7ba27c55d3931f860908d9520697e1f9b78defcbb5afe1d1d55adae07d234e447724cf81d79473e1287d8168ded2f4809e7fb021e6c96872
ripemd-160
423916edc2643576901b5b5f488f198f27843bd7
Diameter
63456262
Circumference
199353726.52347
Area
3.1625605752374E+15
Volume
1.3378951496876E+23
Surface area
1.265024230095E+16
Circumference
199353726.52347
Perimeter
126912524
Area
1006674296753161
Diagonal
44870353.16895
Surface area
6040045780518966
Volume
3.1939893961717E+22
Space diagonal
54954734.921201
Perimeter
95184393
Area
4.3590275716254E+14
Altitude
27477367.460601
Surface area
4.3590275716254E+14
Volume
3.7641526017849E+21
Height
14956784.38965