21131275 is an odd 8-digits composite number following 21131274
and preceding 21131276 . In scientific notation, it is written as 2.1131275 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 15002400 positive integers (up to 21131275) that are relatively prime to 21131275.
21131275 has 16 divisors, whose sum is 27806976
The reverse of 21131275 is 57213112
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million one hundred thirty-one thousand two hundred seventy-five
Scientific notation
2.1131275 × 10^7
Engineering notation
2.1131275 × 10^6
Prime Factorization
215 × 5 × 11 × 1787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21131275
Product of the distinct prime numbers
The prime factorization of 21131275 is 215 × 5 × 11 × 1787.
Since it has a total of 4 prime factors.
3 , 7 , 59 , 81 , 547 , 999 , 5500 , 2485 , 8344 , 3449 , 990215 , 829589 , 7722822 , 8394234 , 87549184 , 33536978 , 790961607 , 327469087 , 7229271 , 2576759324
n×2
42262550
n×3
63393825
n×4
84525100
n×5
105656375
n÷2
10565637.5
n÷3
7043758.3333333
n÷3
5282818.75
n÷5
4226255
n2
446530783125625
n3
9.4357647741929E+21
n4
1.9938974027878E+29
n5
4.2133594340096E+36
2 √n
4596.8766570357
3 √n
276.46610922629
4 √n
67.800270331583
5 √n
29.173271943904
1 , 5 , 11 , 55 , 215 , 1075 , 1787 , 2365 , 8935 , 11825 , 19657 , 98285 , 384205 , 1921025 , 4226255 , 21131275
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21131274
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131275 can be divided by 16 positive divisors.
The sum of these divisors (counting 21131275) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100111000000001011
3
Ternary
1110202120122211
4
Quaternary
1100213000023
5
Quinary
20402200100
6
Senary
2032525551
8
Octal
120470013
10
Decimal
21131275
12
Duodecimal
70b08b7
16
Hexadecimal
142700b
20
Vigesimal
6c183f
36
Base36
ckwzv
md5
e4a6d7b8f45bfef0d1669cda0f2afc16
sha1
c7de374f45bf71cc1b7ae642bd52dac7492fa89b
sha256
3fa7ead451790bb63a0f00106cebc2852e0c6d21f20c09510bd525bf6379d9cb
sha512
cdc5c62fddb3f7d0a30754027566e52f996ac9fb9764d4e499d96aa70f678764c10bfe84dabbc1cfd314d4179a2a11c087516a1d8f35f4010bfb827034f6afb0
ripemd-160
f94c5aacc921b7f94948ac5b9cc9a4ca9d5b8fdd
Diameter
42262550
Circumference
132771716.60197
Area
1.4028178278692E+15
Volume
3.9524439060808E+22
Surface area
5.6112713114766E+15
Circumference
132771716.60197
Perimeter
84525100
Area
446530783125625
Diagonal
29884135.695236
Surface area
2679184698753750
Volume
9.4357647741929E+21
Space diagonal
36600441.92871
Perimeter
63393825
Area
1.9335350087928E+14
Altitude
18300220.964355
Surface area
1.9335350087928E+14
Volume
1.1120155429188E+21
Height
9961378.5650785