31139991 is an odd 8-digits composite number following 31139990
and preceding 31139992 . In scientific notation, it is written as 3.1139991 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 19891872 positive integers (up to 31139991) that are relatively prime to 31139991.
31139991 has 8 divisors, whose sum is 31821120
The reverse of 31139991 is 19993113
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
thirty-one million one hundred thirty-nine thousand nine hundred ninety-one
Scientific notation
3.1139991 × 10^7
Engineering notation
3.1139991 × 10^6
Prime Factorization
1269 × 53 × 463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31139991
Product of the distinct prime numbers
The prime factorization of 31139991 is 1269 × 53 × 463.
Since it has a total of 3 prime factors.
4 , 5 , 8 , 5 , 197 , 188 , 2613 , 3239 , 71721 , 44866 , 482861 , 443730 , 8372127 , 9296300 , 83129612 , 54108389 , 896074407 , 787127752 , 1160772642 , 5231663797
n×2
62279982
n×3
93419973
n×4
124559964
n×5
155699955
n÷2
15569995.5
n÷3
10379997
n÷3
7784997.75
n÷5
6227998.2
n2
969699039480081
n3
3.0196419362118E+22
n4
9.4031622716859E+29
n5
2.9281438851184E+37
2 √n
5580.3217649164
3 √n
314.61022083632
4 √n
74.701551288554
5 √n
31.52562436573
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
-31139990
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 31139991 can be divided by 8 positive divisors.
The sum of these divisors (counting 31139991) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110110010100010010111
3
Ternary
2011121002001000
4
Quaternary
1312302202113
5
Quinary
30432434431
6
Senary
3031234343
8
Octal
166624227
10
Decimal
31139991
12
Duodecimal
a5189b3
16
Hexadecimal
1db2897
20
Vigesimal
9ec9jb
36
Base36
ijfrr
md5
9f8d60e1cefd052c19e402db2b9e145f
sha1
17ad7a9b2518e4cbb77a19ec5146958adc303cd4
sha256
4ea4ac873f24c876a460b0d2e5ba9d20006c1f59aefded5ded0a4ba6a2365e06
sha512
5f9bb04b740ef3abcab257061598f4a4f71820379aee9cd57cdb2e4db9dcbbefce550345d06e2a599542f7ce62f9bbdb2f1639b75f3ff2ffe6a2c1dc0b8c63d8
ripemd-160
68449ac042ed6bd838519273deddc516b11dcdfd
Diameter
62279982
Circumference
195658333.9169
Area
3.0463993786237E+15
Volume
1.2648646564366E+23
Surface area
1.2185597514495E+16
Circumference
195658333.9169
Perimeter
124559964
Area
969699039480081
Diagonal
44038597.604376
Surface area
5818194236880486
Volume
3.0196419362118E+22
Space diagonal
53936046.559238
Perimeter
93419973
Area
4.1989200110756E+14
Altitude
26968023.279619
Surface area
4.1989200110756E+14
Volume
3.5586821497511E+21
Height
14679532.534792