31668081 is an odd 8-digits composite number following 31668080
and preceding 31668082 . In scientific notation, it is written as 3.1668081 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 19953360 positive integers (up to 31668081) that are relatively prime to 31668081.
31668081 has 16 divisors, whose sum is 44605440
The reverse of 31668081 is 18086613
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
thirty-one million six hundred sixty-eight thousand eighty-one
Scientific notation
3.1668081 × 10^7
Engineering notation
3.1668081 × 10^6
Prime Factorization
3 × 43 × 31 × 7919
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31668081
Product of the distinct prime numbers
The prime factorization of 31668081 is 3 × 43 × 31 × 7919.
Since it has a total of 4 prime factors.
7 , 9 , 26 , 19 , 909 , 443 , 6259 , 7819 , 95876 , 23294 , 411379 , 512623 , 6514259 , 3886136 , 69044554 , 57689205 , 158445155 , 212682336 , 1319217253 , 1548559527
n×2
63336162
n×3
95004243
n×4
126672324
n×5
158340405
n÷2
15834040.5
n÷3
10556027
n÷3
7917020.25
n÷5
6333616.2
n2
1002867354222561
n3
3.1758884605776E+22
n4
1.0057429301654E+30
n5
3.1849948577654E+37
2 √n
5627.4400041227
3 √n
316.37870861814
4 √n
75.016264930498
5 √n
31.631832293375
1 , 3 , 31 , 43 , 93 , 129 , 1333 , 3999 , 7919 , 23757 , 245489 , 340517 , 736467 , 1021551 , 10556027 , 31668081
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
-31668080
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 31668081 can be divided by 16 positive divisors.
The sum of these divisors (counting 31668081) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000110011011101110001
3
Ternary
2012120220102220
4
Quaternary
1320303131301
5
Quinary
31101334311
6
Senary
3050431253
8
Octal
170633561
10
Decimal
31668081
12
Duodecimal
a732529
16
Hexadecimal
1e33771
20
Vigesimal
9hia41
36
Base36
iur8x
md5
7880b74b482aebbd5454e3aeebef7079
sha1
ee057249bed568332e491badc6ed2abee1261b59
sha256
2019a4f902c99d219e6015073d16cc74ae01946efc126af77ef1e2f0437ee342
sha512
af6906fb7e6a9a4cd35f7fb5567360144c1eb7334d70307d3c67a6f21a5fdcd072ca5bb02ace4c82f94c784e1094bb9d5961bf3d188d991747a3bbe5c21eacc8
ripemd-160
5a588211a973759677acb939cf8ea8f9a927c805
Diameter
63336162
Circumference
198976421.24577
Area
3.1506007125506E+15
Volume
1.3303130475161E+23
Surface area
1.2602402850203E+16
Circumference
198976421.24577
Perimeter
126672324
Area
1002867354222561
Diagonal
44785429.64453
Surface area
6017204125335366
Volume
3.1758884605776E+22
Space diagonal
54850725.270207
Perimeter
95004243
Area
4.3425430269141E+14
Altitude
27425362.635103
Surface area
4.3425430269141E+14
Volume
3.7428204446108E+21
Height
14928476.548177