31008081 is an odd 8-digits composite number following 31008080
and preceding 31008082 . In scientific notation, it is written as 3.1008081 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 19081872 positive integers (up to 31008081) that are relatively prime to 31008081.
31008081 has 4 divisors, whose sum is 31803200
The reverse of 31008081 is 18080013
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
thirty-one million eight thousand eighty-one
Scientific notation
3.1008081 × 10^7
Engineering notation
3.1008081 × 10^6
Prime Factorization
39 × 795079
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31008081
Product of the distinct prime numbers
The prime factorization of 31008081 is 39 × 795079.
Since it has a total of 2 prime factors.
5 , 4 , 47 , 20 , 870 , 686 , 2871 , 8970 , 13289 , 68990 , 733853 , 732054 , 5693354 , 4530385 , 6399407 , 56078462 , 461458091 , 101547133 , 282308280 , 6488083181
n×2
62016162
n×3
93024243
n×4
124032324
n×5
155040405
n÷2
15504040.5
n÷3
10336027
n÷3
7752020.25
n÷5
6201616.2
n2
961501087302561
n3
2.9814303596666E+22
n4
9.2448434088401E+29
n5
2.8666485325363E+37
2 √n
5568.4900107659
3 √n
314.16535910103
4 √n
74.622315769252
5 √n
31.498870283723
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31008080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31008081 can be divided by 4 positive divisors.
The sum of these divisors (counting 31008081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110010010010101010001
3
Ternary
2011100101002110
4
Quaternary
1312102111101
5
Quinary
30414224311
6
Senary
3024335533
8
Octal
166222521
10
Decimal
31008081
12
Duodecimal
a4745a9
16
Hexadecimal
1d92551
20
Vigesimal
9dg041
36
Base36
iglzl
md5
8570af8fe77180b5f6b8c1522baff600
sha1
381df0e03bcd0199376eab713c4d53d1b9914e85
sha256
87d926e0e7801e3b583bb878ed49013673f1140405ba874910038dea23ff89bc
sha512
51792879d37140e579e0c20c3e606822da89803480ecdb098428b26bcf5d92b14fa3712b30e84b6c7c14f60d8ba51dfd779a04490ed30f19416b80df500259f7
ripemd-160
477014b67ec5d1654badf7ddc774b876963641e3
Diameter
62016162
Circumference
194829518.94303
Area
3.0206447522883E+15
Volume
1.2488586286824E+23
Surface area
1.2082579009153E+16
Circumference
194829518.94303
Perimeter
124032324
Area
961501087302561
Diagonal
43852048.693363
Surface area
5769006523815366
Volume
2.9814303596666E+22
Space diagonal
53707571.737211
Perimeter
93024243
Area
4.1634218368519E+14
Altitude
26853785.868606
Surface area
4.1634218368519E+14
Volume
3.5136493749262E+21
Height
14617349.564454