21072515 is an odd 8-digits composite number following 21072514
and preceding 21072516 . In scientific notation, it is written as 2.1072515 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 16858008 positive integers (up to 21072515) that are relatively prime to 21072515.
21072515 has 4 divisors, whose sum is 25287024
The reverse of 21072515 is 51527012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million seventy-two thousand five hundred fifteen
Scientific notation
2.1072515 × 10^7
Engineering notation
2.1072515 × 10^6
Prime Factorization
5 × 4214503
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21072515
Product of the distinct prime numbers
The prime factorization of 21072515 is 5 × 4214503.
Since it has a total of 2 prime factors.
10 , 10 , 3 , 65 , 527 , 694 , 5496 , 1262 , 70659 , 40288 , 402262 , 991672 , 8446846 , 4267382 , 70416857 , 6681649 , 932061517 , 93686479 , 7897141443 , 8659003877
n×2
42145030
n×3
63217545
n×4
84290060
n×5
105362575
n÷2
10536257.5
n÷3
7024171.6666667
n÷3
5268128.75
n÷5
4214503
n2
444050888425225
n3
9.3572690071039E+21
n4
1.9718119151123E+29
n5
4.1551036158383E+36
2 √n
4590.4809116257
3 √n
276.20961374619
4 √n
67.75308783831
5 √n
29.157029371228
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
-21072514
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 21072515 can be divided by 4 positive divisors.
The sum of these divisors (counting 21072515) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011000101010000011
3
Ternary
1110122121001112
4
Quaternary
1100120222003
5
Quinary
20343310030
6
Senary
2031353535
8
Octal
120305203
10
Decimal
21072515
12
Duodecimal
70828ab
16
Hexadecimal
1418a83
20
Vigesimal
6be15f
36
Base36
cjnnn
md5
bd23fd1b851fa3ad1189964da4a833d2
sha1
9fac469c29198b415570c739c3b99f71c9cc8b85
sha256
48bdcbb37b6178780dd2457dd41caafb540c67bd811adba3ce1af9109d38be7c
sha512
cb32857a8a8aa0a57bce973d7ad815b61bec2b97dec58610ebae031d50fbad53f2858dc42323d1dfe49429b0b520d36a172d014067d15c5e59f7879b790a9c9f
ripemd-160
a394bc061d0f6c9d7ddf0a28934e85a156ac35d0
Diameter
42145030
Circumference
132402516.63332
Area
1.3950270088967E+15
Volume
3.9195636760508E+22
Surface area
5.5801080355868E+15
Circumference
132402516.63332
Perimeter
84290060
Area
444050888425225
Diagonal
29801036.50631
Surface area
2664305330551350
Volume
9.3572690071039E+21
Space diagonal
36498666.623257
Perimeter
63217545
Area
1.9227967497465E+14
Altitude
18249333.311629
Surface area
1.9227967497465E+14
Volume
1.1027647280516E+21
Height
9933678.8354368