31988081 is an odd 8-digits prime number following 31988080
and preceding 31988082 . In scientific notation, it is written as 3.1988081 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 31988080 positive integers (up to 31988081) that are relatively prime to 31988081.
31988081 has 2 divisors, whose sum is 31988082
The reverse of 31988081 is 18088913
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
thirty-one million nine hundred eighty-eight thousand eighty-one
Scientific notation
3.1988081 × 10^7
Engineering notation
3.1988081 × 10^6
Prime Factorization
31988081
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
31988081
Product of the distinct prime numbers
The prime factorization of 31988081 is 31988081.
Since it has a total of 1 prime factors.
10 , 8 , 2 , 37 , 946 , 109 , 3372 , 4704 , 7159 , 15716 , 455402 , 23484 , 5907112 , 4640457 , 31397987 , 27633420 , 174208675 , 198656299 , 9189130324 , 847717101
n×2
63976162
n×3
95964243
n×4
127952324
n×5
159940405
n÷2
15994040.5
n÷3
10662693.666667
n÷3
7997020.25
n÷5
6397616.2
n2
1023237326062561
n3
3.2731398468313E+22
n4
1.0470146254477E+30
n5
3.3491988647004E+37
2 √n
5655.8006506595
3 √n
317.44078834637
4 √n
75.205057347624
5 √n
31.695502204595
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
31988082
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
15994041
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5655.8007390643
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999374767
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31988081 can be divided by 2 positive divisors.
The sum of these divisors (counting 31988081) is 31988082, the average is 15994041.
Base
System
Value
2
Binary
1111010000001100101110001
3
Ternary
2020012011101202
4
Quaternary
1322001211301
5
Quinary
31142104311
6
Senary
3101340545
8
Octal
172014561
10
Decimal
31988081
12
Duodecimal
a867755
16
Hexadecimal
1e81971
20
Vigesimal
9jia41
36
Base36
j1m5t
md5
26f2f6e4b7b9654c69eb9cf81017705d
sha1
88f91f85dcebb65f528dfc661d6974cffd7f0bd3
sha256
301f1fbbafe6a0df3fa54a34c7c09c90c4656f318ec1a184e39cf18efcdc97c6
sha512
947db4c1bd3c24ddcf707235b768bae8b8a0f7adf597099f582a3d45b8cd2c3920501f8d3e88fd9b8179fa89bab056271d77d1a05d47c1e9a0a393fa4cc454bd
ripemd-160
48b2331043e53678948d49d02e41a14d288c8346
Diameter
63976162
Circumference
200987040.54407
Area
3.214594866437E+15
Volume
1.3710496129303E+23
Surface area
1.2858379465748E+16
Circumference
200987040.54407
Perimeter
127952324
Area
1023237326062561
Diagonal
45237977.984489
Surface area
6139423956375366
Volume
3.2731398468313E+22
Space diagonal
55404981.528629
Perimeter
95964243
Area
4.4307475923532E+14
Altitude
27702490.764314
Surface area
4.4307475923532E+14
Volume
3.8574323024438E+21
Height
15079325.99483