21072512 is an even 8-digits composite number following 21072511
and preceding 21072513 . In scientific notation, it is written as 2.1072512 × 10^7.
The sum of its digits is 20. It has a total of 9 prime factors and 32 positive divisors.
There are 10469376 positive integers (up to 21072512) that are relatively prime to 21072512.
21072512 has 32 divisors, whose sum is 42247380
The reverse of 21072512 is 21527012
Previous prime number is 193
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million seventy-two thousand five hundred twelve
Scientific notation
2.1072512 × 10^7
Engineering notation
2.1072512 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 193 × 853
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
9
Total number of prime factors
rad
Radical
329258
Product of the distinct prime numbers
The prime factorization of 21072512 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 193 × 853.
Since it has a total of 9 prime factors.
9 , 6 , 28 , 80 , 168 , 898 , 4 , 5270 , 39883 , 49687 , 368854 , 64284 , 3543482 , 3360258 , 31369911 , 33070896 , 916276283 , 746914661 , 241994687 , 7660037542
n×2
42145024
n×3
63217536
n×4
84290048
n×5
105362560
n÷2
10536256
n÷3
7024170.6666667
n÷3
5268128
n÷5
4214502.4
n2
444050761990144
n3
9.3572650106465E+21
n4
1.9718107922403E+29
n5
4.1551006581213E+36
2 √n
4590.4805848625
3 √n
276.20960063862
4 √n
67.753085426883
5 √n
29.157028541037
1 , 2 , 4 , 8 , 16 , 32 , 64 , 128 , 193 , 386 , 772 , 853 , 1544 , 1706 , 3088 , 3412 , 6176 , 6824 , 12352 , 13648 , 24704 , 27296 , 54592 , 109184 , 164629 , 329258 , 658516 , 1317032 , 2634064 , 5268128 , 10536256 , 21072512
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21072511
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21072512 can be divided by 32 positive divisors.
The sum of these divisors (counting 21072512) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000011000101010000000
3
Ternary
1110122121001102
4
Quaternary
1100120222000
5
Quinary
20343310022
6
Senary
2031353532
8
Octal
120305200
10
Decimal
21072512
12
Duodecimal
70828a8
16
Hexadecimal
1418a80
20
Vigesimal
6be15c
36
Base36
cjnnk
md5
0c23444ac6ef23f0258d3ec35e71508a
sha1
4c7c915375971bdd1327866572e493c69ece2067
sha256
a8850150b6b56635c9788c894132e4b0207ca1e82f0366a47f682084b9982404
sha512
2a522b22dc6217b6bb2c001e61041ef3ff4e1cf097f2259e9ff0e765625e05835f662e5dd862d37cfd0acbb5e705852f1792269bfb0a62b902a5822462ba1ccf
ripemd-160
4a408478051e1c63f4de8670872f4040c16d9960
Diameter
42145024
Circumference
132402497.78377
Area
1.3950266116892E+15
Volume
3.9195620020186E+22
Surface area
5.5801064467567E+15
Circumference
132402497.78377
Perimeter
84290048
Area
444050761990144
Diagonal
29801032.26367
Surface area
2664304571940864
Volume
9.3572650106465E+21
Space diagonal
36498661.427105
Perimeter
63217536
Area
1.9227962022665E+14
Altitude
18249330.713552
Surface area
1.9227962022665E+14
Volume
1.1027642570646E+21
Height
9933677.4212233