31139931 is an odd 8-digits composite number following 31139930
and preceding 31139932 . In scientific notation, it is written as 3.1139931 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 20691720 positive integers (up to 31139931) that are relatively prime to 31139931.
31139931 has 8 divisors, whose sum is 41656384
The reverse of 31139931 is 13993113
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
thirty-one million one hundred thirty-nine thousand nine hundred thirty-one
Scientific notation
3.1139931 × 10^7
Engineering notation
3.1139931 × 10^6
Prime Factorization
3 × 307 × 33811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31139931
Product of the distinct prime numbers
The prime factorization of 31139931 is 3 × 307 × 33811.
Since it has a total of 3 prime factors.
6 , 6 , 63 , 70 , 505 , 542 , 1445 , 3166 , 1412 , 86822 , 141522 , 730163 , 461427 , 4914245 , 98108507 , 63634748 , 653530058 , 337471897 , 8910431818 , 117403037
n×2
62279862
n×3
93419793
n×4
124559724
n×5
155699655
n÷2
15569965.5
n÷3
10379977
n÷3
7784982.75
n÷5
6227986.2
n2
969695302684761
n3
3.0196244816628E+22
n4
9.4030898004889E+29
n5
2.9281156757403E+37
2 √n
5580.3163888798
3 √n
314.61001877433
4 √n
74.701515305111
5 √n
31.525612217114
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
-31139930
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 31139931 can be divided by 8 positive divisors.
The sum of these divisors (counting 31139931) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110110010100001011011
3
Ternary
2011121001221210
4
Quaternary
1312302201123
5
Quinary
30432434211
6
Senary
3031234203
8
Octal
166624133
10
Decimal
31139931
12
Duodecimal
a518963
16
Hexadecimal
1db285b
20
Vigesimal
9ec9gb
36
Base36
ijfq3
md5
6cc160f0ec36d83473c54402b12e551d
sha1
d7091cea894f44b9a62cbf8bee0cdffa45f7bdf8
sha256
60c83ab329ea6d434d197d8f14befbec09a4cd1a3e73e3c0916056a5275c8c7f
sha512
36785800588df532e08d36bdca0d59baec6c8ffc0b444df9aa7a6276e16c9b8c65a915906592b1cff79a50280ab26bde3163b20d145db7ed5b196cd6c234ec6a
ripemd-160
7ad832f3940cb650f2a160df7c4db596dc151cc3
Diameter
62279862
Circumference
195657956.92579
Area
3.046387639135E+15
Volume
1.2648573450922E+23
Surface area
1.218555055654E+16
Circumference
195657956.92579
Perimeter
124559724
Area
969695302684761
Diagonal
44038512.751562
Surface area
5818171816108566
Volume
3.0196244816628E+22
Space diagonal
53935942.636189
Perimeter
93419793
Area
4.1989038302772E+14
Altitude
26967971.318095
Surface area
4.1989038302772E+14
Volume
3.5586615793677E+21
Height
14679504.250521