21271279 is an odd 8-digits composite number following 21271278
and preceding 21271280 . In scientific notation, it is written as 2.1271279 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 19961496 positive integers (up to 21271279) that are relatively prime to 21271279.
21271279 has 8 divisors, whose sum is 22602240
The reverse of 21271279 is 97217212
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million two hundred seventy-one thousand two hundred seventy-nine
Scientific notation
2.1271279 × 10^7
Engineering notation
2.1271279 × 10^6
Prime Factorization
19 × 107 × 10463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21271279
Product of the distinct prime numbers
The prime factorization of 21271279 is 19 × 107 × 10463.
Since it has a total of 3 prime factors.
8 , 9 , 56 , 34 , 909 , 792 , 3119 , 282 , 51163 , 78439 , 496001 , 880269 , 2220224 , 6215625 , 91767656 , 10943649 , 875180224 , 890297315 , 2794163645 , 3012007688
n×2
42542558
n×3
63813837
n×4
85085116
n×5
106356395
n÷2
10635639.5
n÷3
7090426.3333333
n÷3
5317819.75
n÷5
4254255.8
n2
452467310295841
n3
9.6245583956824E+21
n4
2.0472666688635E+29
n5
4.3547980500797E+36
2 √n
4612.0796827462
3 √n
277.07533563263
4 √n
67.912294047147
5 √n
29.211827055073
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
-21271278
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 21271279 can be divided by 8 positive divisors.
The sum of these divisors (counting 21271279) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001001001011101111
3
Ternary
1111000200201011
4
Quaternary
1101021023233
5
Quinary
20421140104
6
Senary
2035530051
8
Octal
121111357
10
Decimal
21271279
12
Duodecimal
7159927
16
Hexadecimal
14492ef
20
Vigesimal
6cii3j
36
Base36
cnx0v
md5
ee0b2590a2df50bf64b7c11ef7ccac68
sha1
f4cefb1ac6e79caeae8fad384c511a4f8ab2ea2f
sha256
e3ab9d1f07c47f9d877aa1811ae66647bbd4cc62d7b3682b10416a99dfde4c15
sha512
15c4f6a6d51a907344d0f4fb422886aa1735b6037bfafb5237e6e5bd3077023bdb4a72effbd334ad033c12ddc34adfebf9588a8a60fdb7f95d596cb4cd0452fb
ripemd-160
94987601bd3d966426d7bd55ab2c7636efa48476
Diameter
42542558
Circumference
133651387.67772
Area
1.4214679780149E+15
Volume
4.0315255933229E+22
Surface area
5.6858719120598E+15
Circumference
133651387.67772
Perimeter
85085116
Area
452467310295841
Diagonal
30082131.250822
Surface area
2714803861775046
Volume
9.6245583956824E+21
Space diagonal
36842935.969973
Perimeter
63813837
Area
1.9592409254911E+14
Altitude
18421467.984986
Surface area
1.9592409254911E+14
Volume
1.1342650845855E+21
Height
10027377.083607