21072511 is an odd 8-digits composite number following 21072510
and preceding 21072512 . In scientific notation, it is written as 2.1072511 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20727000 positive integers (up to 21072511) that are relatively prime to 21072511.
21072511 has 4 divisors, whose sum is 21418024
The reverse of 21072511 is 11527012
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million seventy-two thousand five hundred eleven
Scientific notation
2.1072511 × 10^7
Engineering notation
2.1072511 × 10^6
Prime Factorization
61 × 345451
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21072511
Product of the distinct prime numbers
The prime factorization of 21072511 is 61 × 345451.
Since it has a total of 2 prime factors.
1 , 7 , 59 , 21 , 260 , 127 , 3116 , 9929 , 26539 , 95030 , 994121 , 843948 , 7146410 , 7896753 , 88411544 , 72573903 , 16521424 , 900636561 , 5112074042 , 5527522711
n×2
42145022
n×3
63217533
n×4
84290044
n×5
105362555
n÷2
10536255.5
n÷3
7024170.3333333
n÷3
5268127.75
n÷5
4214502.2
n2
444050719845121
n3
9.3572636784942E+21
n4
1.9718104179497E+29
n5
4.155099672216E+36
2 √n
4590.4804759415
3 √n
276.20959626942
4 √n
67.753084623074
5 √n
29.157028264307
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
-21072510
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 21072511 can be divided by 4 positive divisors.
The sum of these divisors (counting 21072511) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011000101001111111
3
Ternary
1110122121001101
4
Quaternary
1100120221333
5
Quinary
20343310021
6
Senary
2031353531
8
Octal
120305177
10
Decimal
21072511
12
Duodecimal
70828a7
16
Hexadecimal
1418a7f
20
Vigesimal
6be15b
36
Base36
cjnnj
md5
2ad071fd70659fb2a2ba5901db898857
sha1
c34fa200355c54131a12a38b4aaed5d9b3afcdf3
sha256
90fcd7a1bcc24e0c73da6f819987935491710c85decb90b0fe49ccdbabcb0b4c
sha512
e3e6830de5a85a2dc11991fe8da7f6ce7a0c598ba39d78a6e8fdcc5622f0618e965763cd8914848866950547197f520c270900bfc08f25e95ed88047821a41d4
ripemd-160
da131930b20ffc7875e1fbeed0f26c221dae9f69
Diameter
42145022
Circumference
132402491.50058
Area
1.3950264792867E+15
Volume
3.919561444008E+22
Surface area
5.5801059171468E+15
Circumference
132402491.50058
Perimeter
84290044
Area
444050719845121
Diagonal
29801030.849456
Surface area
2664304319070726
Volume
9.3572636784942E+21
Space diagonal
36498659.695054
Perimeter
63217533
Area
1.9227960197732E+14
Altitude
18249329.847527
Surface area
1.9227960197732E+14
Volume
1.102764100069E+21
Height
9933676.9498187