31139905 is an odd 8-digits composite number following 31139904
and preceding 31139906 . In scientific notation, it is written as 3.1139905 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 24337728 positive integers (up to 31139905) that are relatively prime to 31139905.
31139905 has 16 divisors, whose sum is 38237760
The reverse of 31139905 is 50993113
Previous prime number is 373
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
thirty-one million one hundred thirty-nine thousand nine hundred five
Scientific notation
3.1139905 × 10^7
Engineering notation
3.1139905 × 10^6
Prime Factorization
5 × 59 × 373 × 283
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31139905
Product of the distinct prime numbers
The prime factorization of 31139905 is 5 × 59 × 373 × 283.
Since it has a total of 4 prime factors.
7 , 10 , 28 , 51 , 685 , 653 , 4420 , 978 , 82178 , 49946 , 391841 , 101293 , 6986683 , 3039468 , 27116566 , 54485350 , 459531247 , 419121609 , 3892897495 , 6021199958
n×2
62279810
n×3
93419715
n×4
124559620
n×5
155699525
n÷2
15569952.5
n÷3
10379968.333333
n÷3
7784976.25
n÷5
6227981
n2
969693683409025
n3
3.0196169180457E+22
n4
9.4030583964336E+29
n5
2.928103451744E+37
2 √n
5580.3140592623
3 √n
314.60993121405
4 √n
74.70149971227
5 √n
31.525606952708
1 , 5 , 59 , 283 , 295 , 373 , 1415 , 1865 , 16697 , 22007 , 83485 , 105559 , 110035 , 527795 , 6227981 , 31139905
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31139904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31139905 can be divided by 16 positive divisors.
The sum of these divisors (counting 31139905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110110010100001000001
3
Ternary
2011121001220211
4
Quaternary
1312302201001
5
Quinary
30432434110
6
Senary
3031234121
8
Octal
166624101
10
Decimal
31139905
12
Duodecimal
a518941
16
Hexadecimal
1db2841
20
Vigesimal
9ec9f5
36
Base36
ijfpd
md5
21907dd40189d64b188055d889afeda5
sha1
229508b4f2c2e083e5e097ddb8009a3e93757cf2
sha256
ab43bf6c7000be34852e8e2ad30dc6afc5091b49bd5c9db2ae42879146f6f452
sha512
2985a15ce16d981054d71d034ea7cd18bef1c34e7e6d16520f2db7c61ecac7e2b78a375d32bbf421a11deb2757390d20f03b3f615d4001a904e9df48a1fac4f1
ripemd-160
e49a7c5e6ef2d25ed9ea04fdc1acbfebff62aeab
Diameter
62279810
Circumference
195657793.56297
Area
3.0463825520302E+15
Volume
1.2648541768517E+23
Surface area
1.2185530208121E+16
Circumference
195657793.56297
Perimeter
124559620
Area
969693683409025
Diagonal
44038475.98201
Surface area
5818162100454150
Volume
3.0196169180457E+22
Space diagonal
53935897.602868
Perimeter
93419715
Area
4.1988968186076E+14
Altitude
26967948.801434
Surface area
4.1988968186076E+14
Volume
3.5586526655596E+21
Height
14679491.994003