31398081 is an odd 8-digits composite number following 31398080
and preceding 31398082 . In scientific notation, it is written as 3.1398081 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 17565120 positive integers (up to 31398081) that are relatively prime to 31398081.
31398081 has 16 divisors, whose sum is 49183680
The reverse of 31398081 is 18089313
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
thirty-one million three hundred ninety-eight thousand eighty-one
Scientific notation
3.1398081 × 10^7
Engineering notation
3.1398081 × 10^6
Prime Factorization
11 × 3 × 13 × 73189
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31398081
Product of the distinct prime numbers
The prime factorization of 31398081 is 11 × 3 × 13 × 73189.
Since it has a total of 4 prime factors.
3 , 9 , 81 , 2 , 583 , 979 , 4587 , 9555 , 72445 , 31221 , 974226 , 391707 , 9497280 , 3217444 , 18470945 , 4329865 , 539786607 , 692618803 , 7742042975 , 7838707331
n×2
62796162
n×3
94194243
n×4
125592324
n×5
156990405
n÷2
15699040.5
n÷3
10466027
n÷3
7849520.25
n÷5
6279616.2
n2
985839490482561
n3
3.095346817517E+22
n4
9.7187950099492E+29
n5
3.0515151294478E+37
2 √n
5603.3990577149
3 √n
315.47699967032
4 √n
74.855855199943
5 √n
31.577709208143
1 , 3 , 11 , 13 , 33 , 39 , 143 , 429 , 73189 , 219567 , 805079 , 951457 , 2415237 , 2854371 , 10466027 , 31398081
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
-31398080
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 31398081 can be divided by 16 positive divisors.
The sum of these divisors (counting 31398081) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111110001100011000001
3
Ternary
2012002012001220
4
Quaternary
1313301203001
5
Quinary
31014214311
6
Senary
3040545253
8
Octal
167614301
10
Decimal
31398081
12
Duodecimal
a622229
16
Hexadecimal
1df18c1
20
Vigesimal
9g4f41
36
Base36
ioywx
md5
78e38d6a55e704f88a5bd36aae317537
sha1
628a0abffa54796a7f662af2323a092ce2fc2ffc
sha256
e33c60305271164160b1ad8e5675bfa2b4bf4b27abb5fa36fdac3671520f5a45
sha512
5e406313889fc6b89297c8cfec902e28d51ca64e7dc10d5a7619a2114e5870adb6babccf5e30eaccea4700f79b33e3499eee9b41f346a1c967911d6bf1c05ac2
ripemd-160
5a5c38aee0673a0e913966ee9958a61d129a4ba6
Diameter
62796162
Circumference
197279961.21283
Area
3.0971061009187E+15
Volume
1.2965758429632E+23
Surface area
1.2388424403675E+16
Circumference
197279961.21283
Perimeter
125592324
Area
985839490482561
Diagonal
44403591.982689
Surface area
5915036942895366
Volume
3.095346817517E+22
Space diagonal
54383071.552163
Perimeter
94194243
Area
4.268810214059E+14
Altitude
27191535.776082
Surface area
4.268810214059E+14
Volume
3.6479012079841E+21
Height
14801197.327563