21031371 is an odd 8-digits composite number following 21031370
and preceding 21031372 . In scientific notation, it is written as 2.1031371 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13990320 positive integers (up to 21031371) that are relatively prime to 21031371.
21031371 has 8 divisors, whose sum is 23419200
The reverse of 21031371 is 17313012
Previous prime number is 509
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million thirty-one thousand three hundred seventy-one
Scientific notation
2.1031371 × 10^7
Engineering notation
2.1031371 × 10^6
Prime Factorization
9 × 509 × 4591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031371
Product of the distinct prime numbers
The prime factorization of 21031371 is 9 × 509 × 4591.
Since it has a total of 3 prime factors.
10 , 5 , 68 , 35 , 615 , 52 , 1825 , 9477 , 76830 , 61702 , 493746 , 22898 , 1864531 , 7341769 , 72290426 , 35321961 , 739538410 , 728660226 , 6949130891 , 4640926313
n×2
42062742
n×3
63094113
n×4
84125484
n×5
105156855
n÷2
10515685.5
n÷3
7010457
n÷3
5257842.75
n÷5
4206274.2
n2
442318566139641
n3
9.3025658646708E+21
n4
1.9564571395183E+29
n5
4.1146975946808E+36
2 √n
4585.9972743123
3 √n
276.02973057174
4 √n
67.719991688661
5 √n
29.14563467221
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031370
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031371 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031371) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110100111001011
3
Ternary
1110120111121200
4
Quaternary
1100032213023
5
Quinary
20341000441
6
Senary
2030435243
8
Octal
120164713
10
Decimal
21031371
12
Duodecimal
7062b23
16
Hexadecimal
140e9cb
20
Vigesimal
6b8i8b
36
Base36
cirwr
md5
70f59683dd103353154e5edaeb94f9cd
sha1
3bd08cc9ecf6f9b1b3d3b9cec5c0aba0f14a164a
sha256
9550990d374475fc6388ce63b4b966275887e946f16f59c20140f798618857ee
sha512
a68f6b82cce205cd9da4edff61349a619ba4e88faa4ef9112219a6d6a039c742021321f9aca9156497c3b0420dbae2d4fc0b5e16b11367a5df6c36ab36a16eef
ripemd-160
9e637ca8d2f6ed13e59f28b3858598c09013b081
Diameter
42062742
Circumference
132144001.25704
Area
1.3895847579307E+15
Volume
3.8966496773313E+22
Surface area
5.5583390317227E+15
Circumference
132144001.25704
Perimeter
84125484
Area
442318566139641
Diagonal
29742850.1035
Surface area
2653911396837846
Volume
9.3025658646708E+21
Space diagonal
36427403.124831
Perimeter
63094113
Area
1.9152955742122E+14
Altitude
18213701.562415
Surface area
1.9152955742122E+14
Volume
1.0963179008905E+21
Height
9914283.3678334