20951231 is an odd 8-digits composite number following 20951230
and preceding 20951232 . In scientific notation, it is written as 2.0951231 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 17958192 positive integers (up to 20951231) that are relatively prime to 20951231.
20951231 has 4 divisors, whose sum is 23944272
The reverse of 20951231 is 13215902
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million nine hundred fifty-one thousand two hundred thirty-one
Scientific notation
2.0951231 × 10^7
Engineering notation
2.0951231 × 10^6
Prime Factorization
7 × 2993033
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20951231
Product of the distinct prime numbers
The prime factorization of 20951231 is 7 × 2993033.
Since it has a total of 2 prime factors.
8 , 2 , 85 , 35 , 537 , 989 , 1604 , 927 , 22513 , 35555 , 81495 , 402918 , 7065801 , 2582115 , 56784576 , 38582910 , 578801447 , 624472442 , 519991239 , 5021235783
n×2
41902462
n×3
62853693
n×4
83804924
n×5
104756155
n÷2
10475615.5
n÷3
6983743.6666667
n÷3
5237807.75
n÷5
4190246.2
n2
438954080415361
n3
9.1966283371748E+21
n4
1.926806847133E+29
n5
4.0368975346664E+36
2 √n
4577.2514678571
3 √n
275.67868071053
4 √n
67.65538757451
5 √n
29.123388861952
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
-20951230
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 20951231 can be divided by 4 positive divisors.
The sum of these divisors (counting 20951231) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111011000010111111
3
Ternary
1110102102200112
4
Quaternary
1033323002333
5
Quinary
20330414411
6
Senary
2025020235
8
Octal
117730277
10
Decimal
20951231
12
Duodecimal
702467b
16
Hexadecimal
13fb0bf
20
Vigesimal
6aii1b
36
Base36
ch22n
md5
973b9ca340db999b250d688de99b1496
sha1
f76feaf6e2ce06fd54f3cc57a35cffc75a739587
sha256
f0cd423b2110d29c8dfb4ffe62f7fcad805d7b71f7797078d0f5faff8a2ffd2c
sha512
6ce8b63faa78805e657f72a3f917845ece2b8ed4bd9a0bb07d730e563614f7b4bf383cc9be40d771b944eb7b95bd69c2b46c656293195def419ad753e57bf36b
ripemd-160
4c822d971045579da4c4b56311bd74ad4994345d
Diameter
41902462
Circumference
131640466.78653
Area
1.3790149142962E+15
Volume
3.8522746695819E+22
Surface area
5.5160596571846E+15
Circumference
131640466.78653
Perimeter
83804924
Area
438954080415361
Diagonal
29629515.028612
Surface area
2633724482492166
Volume
9.1966283371748E+21
Space diagonal
36288596.573112
Perimeter
62853693
Area
1.9007269236727E+14
Altitude
18144298.286556
Surface area
1.9007269236727E+14
Volume
1.0838330435448E+21
Height
9876505.0095372