31908 is an even 5-digits composite number following 31907
and preceding 31909 . In scientific notation, it is written as 3.1908 × 10^4.
The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors.
There are 10632 positive integers (up to 31908) that are relatively prime to 31908.
31908 has 12 divisors, whose sum is 74480
The reverse of 31908 is 80913
Previous prime number is 3
Is Prime? no
Number parity even
Number length 5
Sum of Digits 21
Digital Root 3
Name
thirty-one thousand nine hundred eight
Scientific notation
3.1908 × 10^4
Engineering notation
3.1908 × 10^3
Prime Factorization
2 × 2 × 3 × 2659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
15954
Product of the distinct prime numbers
The prime factorization of 31908 is 2 × 2 × 3 × 2659.
Since it has a total of 4 prime factors.
3 , 5 , 80 , 27 , 429 , 499 , 9308 , 2568 , 28010 , 56726 , 352202 , 820439 , 4743747 , 7119233 , 53996221 , 62302846 , 250320978 , 910931891 , 7534666521 , 9477643226
n×2
63816
n×3
95724
n×4
127632
n×5
159540
n÷2
15954
n÷3
10636
n÷3
7977
n÷5
6381.6
n2
1018120464
n3
32486187765312
n4
1036569279215575296
n5
3.3074852561211E+22
2 √n
178.62810529141
3 √n
31.717566648403
4 √n
13.36518257606
5 √n
7.9575599045409
1 , 2 , 3 , 4 , 6 , 12 , 2659 , 5318 , 7977 , 10636 , 15954 , 31908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31908 can be divided by 12 positive divisors.
The sum of these divisors (counting 31908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111110010100100
3
Ternary
1121202210
4
Quaternary
13302210
5
Quinary
2010113
6
Senary
403420
8
Octal
76244
10
Decimal
31908
12
Duodecimal
16570
16
Hexadecimal
7ca4
20
Vigesimal
3jf8
36
Base36
omc
md5
28ca2a3ef786a75109a9e2af23c1a4f7
sha1
005429b368aa55de10e51c6ede6e332fe08914ff
sha256
0ed7586f93fddd53680a45c61cf5880eefe4f0d39031c2c05c2a15accb531472
sha512
157b2e4844042c701773fe9511ef4a3961ff335def008fa9186fe5c63873467ddd6d9e76f6162e0df836379c77f3557a190513c3648a8df21ac7ac92066271aa
ripemd-160
b48792a8231b266c623e2da2e933359cd056e8f6
Diameter
63816
Circumference
200483.87678149
Area
3198519770.1718
Volume
1.3607782510219E+14
Surface area
12794079080.687
Circumference
200483.87678149
Perimeter
127632
Area
1018120464
Diagonal
45124.726348201
Surface area
6108722784
Volume
32486187765312
Space diagonal
55266.277167908
Perimeter
95724
Area
440859092.9684
Altitude
27633.138583954
Surface area
440859092.9684
Volume
3828533943958.6
Height
15041.5754494