31123921 is an odd 8-digits composite number following 31123920
and preceding 31123922 . In scientific notation, it is written as 3.1123921 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 30748852 positive integers (up to 31123921) that are relatively prime to 31123921.
31123921 has 4 divisors, whose sum is 31498992
The reverse of 31123921 is 12932113
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
thirty-one million one hundred twenty-three thousand nine hundred twenty-one
Scientific notation
3.1123921 × 10^7
Engineering notation
3.1123921 × 10^6
Prime Factorization
83 × 374987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31123921
Product of the distinct prime numbers
The prime factorization of 31123921 is 83 × 374987.
Since it has a total of 2 prime factors.
9 , 9 , 92 , 18 , 22 , 432 , 4228 , 2566 , 45458 , 59795 , 54805 , 167753 , 368930 , 1326957 , 11396601 , 9176720 , 860040964 , 471295408 , 1034313988 , 6195517801
n×2
62247842
n×3
93371763
n×4
124495684
n×5
155619605
n÷2
15561960.5
n÷3
10374640.333333
n÷3
7780980.25
n÷5
6224784.2
n2
968698458414241
n3
3.0149694292507E+22
n4
9.3837670333413E+29
n5
2.9205962382812E+37
2 √n
5578.881697975
3 √n
314.5560926234
4 √n
74.691911864505
5 √n
31.522369892129
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
-31123920
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 31123921 can be divided by 4 positive divisors.
The sum of these divisors (counting 31123921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101110100111010001
3
Ternary
2011120020222211
4
Quaternary
1312232213101
5
Quinary
30431431141
6
Senary
3031032121
8
Octal
166564721
10
Decimal
31123921
12
Duodecimal
a50b641
16
Hexadecimal
1dae9d1
20
Vigesimal
9ea9g1
36
Base36
ij3dd
md5
3a0ed418f0fb27819ab70ba09d4252d7
sha1
22044906b3cf8f0897cd0fe0ab000a6ecceca463
sha256
fb2e0a1ee5d09925bcdfda009b48d4f1cf8cef7478293382df62aa362511d8dd
sha512
248683aa70ece4b7049d2a2d2de619456475f02d9c82fa3658c8483c4c496da0b79a860c11aaf2f5284565a6df014c3216ff51ee1d1e9e49540b875e0d3a5f67
ripemd-160
88c59e907a48fc412ec15d8cca612f34a8d41c6a
Diameter
62247842
Circumference
195557363.12902
Area
3.0432559604979E+15
Volume
1.2629074412976E+23
Surface area
1.2173023841992E+16
Circumference
195557363.12902
Perimeter
124495684
Area
968698458414241
Diagonal
44015871.192429
Surface area
5812190750485446
Volume
3.0149694292507E+22
Space diagonal
53908212.50276
Perimeter
93371763
Area
4.1945873679678E+14
Altitude
26954106.25138
Surface area
4.1945873679678E+14
Volume
3.5531755474888E+21
Height
14671957.064143