21072015 is an odd 8-digits composite number following 21072014
and preceding 21072016 . In scientific notation, it is written as 2.1072015 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 11238336 positive integers (up to 21072015) that are relatively prime to 21072015.
21072015 has 8 divisors, whose sum is 28720560
The reverse of 21072015 is 51027012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million seventy-two thousand fifteen
Scientific notation
2.1072015 × 10^7
Engineering notation
2.1072015 × 10^6
Prime Factorization
45 × 3 × 156089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21072015
Product of the distinct prime numbers
The prime factorization of 21072015 is 45 × 3 × 156089.
Since it has a total of 3 prime factors.
9 , 8 , 51 , 44 , 573 , 637 , 3453 , 3668 , 81824 , 71265 , 891737 , 176876 , 9187218 , 3017475 , 32290355 , 473423 , 640987189 , 564847995 , 9728947366 , 2600353789
n×2
42144030
n×3
63216045
n×4
84288060
n×5
105360075
n÷2
10536007.5
n÷3
7024005
n÷3
5268003.75
n÷5
4214403
n2
444029816160225
n3
9.3566029465755E+21
n4
1.9716247763928E+29
n5
4.1546106862521E+36
2 √n
4590.4264507777
3 √n
276.20742913274
4 √n
67.752685930358
5 √n
29.156891004706
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
-21072014
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 21072015 can be divided by 8 positive divisors.
The sum of these divisors (counting 21072015) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011000100010001111
3
Ternary
1110122120101000
4
Quaternary
1100120202033
5
Quinary
20343301030
6
Senary
2031351343
8
Octal
120304217
10
Decimal
21072015
12
Duodecimal
7082553
16
Hexadecimal
141888f
20
Vigesimal
6be00f
36
Base36
cjn9r
md5
487399f40ec37cd5e5348fb80e99f50b
sha1
4699da0fc0253536a8215df122c0cdc073608db3
sha256
e958f8fe55f8f5a7de29d21473c1f5ccf98de24d26f5649981cff14bc3247b59
sha512
0c52446db3ce7d420c02d5e52ae3fe9c7f0584be60718556253f8bb135f495442e38788ac573168c887a247bb4616ff39f0a04310a0d217dfffeace38b6de9a9
ripemd-160
6e77e55de5ec3f8d7779a7a8ae5fae8ab37b1b92
Diameter
42144030
Circumference
132399375.04067
Area
1.3949608084238E+15
Volume
3.9192846772691E+22
Surface area
5.5798432336952E+15
Circumference
132399375.04067
Perimeter
84288060
Area
444029816160225
Diagonal
29800329.399529
Surface area
2664178896961350
Volume
9.3566029465755E+21
Space diagonal
36497800.597853
Perimeter
63216045
Area
1.9227055041624E+14
Altitude
18248900.298927
Surface area
1.9227055041624E+14
Volume
1.1026862320656E+21
Height
9933443.1331764