31128085 is an odd 8-digits composite number following 31128084
and preceding 31128086 . In scientific notation, it is written as 3.1128085 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 23819664 positive integers (up to 31128085) that are relatively prime to 31128085.
31128085 has 4 divisors, whose sum is 31398880
The reverse of 31128085 is 58082113
Previous prime number is 115
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirty-one million one hundred twenty-eight thousand eighty-five
Scientific notation
3.1128085 × 10^7
Engineering notation
3.1128085 × 10^6
Prime Factorization
115 × 270679
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31128085
Product of the distinct prime numbers
The prime factorization of 31128085 is 115 × 270679.
Since it has a total of 2 prime factors.
2 , 9 , 32 , 94 , 150 , 894 , 366 , 9191 , 27988 , 50541 , 976371 , 714609 , 7688502 , 690977 , 49715695 , 16666230 , 134699798 , 15939343 , 3667375719 , 479566275
n×2
62256170
n×3
93384255
n×4
124512340
n×5
155640425
n÷2
15564042.5
n÷3
10376028.333333
n÷3
7782021.25
n÷5
6225617
n2
968957675767225
n3
3.0161796892685E+22
n4
9.3887897742822E+29
n5
2.9225504614099E+37
2 √n
5579.2548785658
3 √n
314.5701199173
4 √n
74.694409955269
5 √n
31.523213308513
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
-31128084
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 31128085 can be divided by 4 positive divisors.
The sum of these divisors (counting 31128085) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101111101000010101
3
Ternary
2011120110201001
4
Quaternary
1312233220111
5
Quinary
30432044320
6
Senary
3031103301
8
Octal
166575025
10
Decimal
31128085
12
Duodecimal
a511b31
16
Hexadecimal
1dafa15
20
Vigesimal
9eb045
36
Base36
ij6l1
md5
cedd8c2a39582600fa6531468d35e741
sha1
4c583eac7eb9bfd560432bac788c6b195959ba47
sha256
99de893c812e44bdf7ff1c7a381c3b3f83e7e884dfa5527903b735ce6b70dc1e
sha512
ac6ebf8222ee89e9339cecb898b2ca62a6a0dd4ba7db85d6e214c8b523af1d71a2d9c6252919d5ab5e73c8244a83c080e5eedba484a76d4a1f3cc2bb9cd66e2e
ripemd-160
5fc6d65359a2ca0a8d6ce7310a1af75a320d24b1
Diameter
62256170
Circumference
195583526.31264
Area
3.0440703158298E+15
Volume
1.2634143938283E+23
Surface area
1.2176281263319E+16
Circumference
195583526.31264
Perimeter
124512340
Area
968957675767225
Diagonal
44021759.977703
Surface area
5813746054603350
Volume
3.0161796892685E+22
Space diagonal
53915424.762323
Perimeter
93384255
Area
4.1957098120317E+14
Altitude
26957712.381161
Surface area
4.1957098120317E+14
Volume
3.5546018525981E+21
Height
14673919.992568