21231278 is an even 8-digits composite number following 21231277
and preceding 21231279 . In scientific notation, it is written as 2.1231278 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 10605600 positive integers (up to 21231278) that are relatively prime to 21231278.
21231278 has 8 divisors, whose sum is 31877040
The reverse of 21231278 is 87213212
Previous prime number is 1201
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred thirty-one thousand two hundred seventy-eight
Scientific notation
2.1231278 × 10^7
Engineering notation
2.1231278 × 10^6
Prime Factorization
2 × 1201 × 8839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21231278
Product of the distinct prime numbers
The prime factorization of 21231278 is 2 × 1201 × 8839.
Since it has a total of 3 prime factors.
7 , 8 , 62 , 34 , 248 , 422 , 9869 , 7464 , 14451 , 5460 , 941076 , 571835 , 6993213 , 2020137 , 76288638 , 88729327 , 113776050 , 432943207 , 222229961 , 7244410545
n×2
42462556
n×3
63693834
n×4
84925112
n×5
106156390
n÷2
10615639
n÷3
7077092.6666667
n÷3
5307819.5
n÷5
4246255.6
n2
450767165513284
n3
9.5703630042845E+21
n4
2.0319103750488E+29
n5
4.3140054043745E+36
2 √n
4607.7410951571
3 √n
276.90154502971
4 √n
67.880343952849
5 √n
29.200832114502
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
-21231277
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 21231278 can be divided by 8 positive divisors.
The sum of these divisors (counting 21231278) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000111111011010101110
3
Ternary
1110221122211122
4
Quaternary
1100333122232
5
Quinary
20413400103
6
Senary
2035020542
8
Octal
120773256
10
Decimal
21231278
12
Duodecimal
713a752
16
Hexadecimal
143f6ae
20
Vigesimal
6cdi3i
36
Base36
cn25q
md5
d3c9a1807e9240c3e01e065b3ac2783b
sha1
a90b83cb1d2bf5129cf22060d3cb78f8eabb0fb0
sha256
16bec93474eef43c9c7b434c2d3d49b5278cd9d71c167e0955e864d66bdf0c9c
sha512
9e0ad6293c7329d0abd33f4ef1e7bc6fb6b7e96769aa9879e636747a6c63db49a30fccd2b83949b6a262a164ea18e48e0c260d404449b42e1b3585a08e75438e
ripemd-160
9bbc8dad07858f75706b89531e23996122652851
Diameter
42462556
Circumference
133400053.98225
Area
1.416126815656E+15
Volume
4.0088242808597E+22
Surface area
5.6645072626241E+15
Circumference
133400053.98225
Perimeter
84925112
Area
450767165513284
Diagonal
30025561.294114
Surface area
2704602993079704
Volume
9.5703630042845E+21
Space diagonal
36773652.205619
Perimeter
63693834
Area
1.951879082632E+14
Altitude
18386826.10281
Surface area
1.951879082632E+14
Volume
1.1278780964577E+21
Height
10008520.431371