21872015 is an odd 8-digits composite number following 21872014
and preceding 21872016 . In scientific notation, it is written as 2.1872015 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 15906880 positive integers (up to 21872015) that are relatively prime to 21872015.
21872015 has 8 divisors, whose sum is 28632528
The reverse of 21872015 is 51027812
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million eight hundred seventy-two thousand fifteen
Scientific notation
2.1872015 × 10^7
Engineering notation
2.1872015 × 10^6
Prime Factorization
5 × 11 × 397673
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21872015
Product of the distinct prime numbers
The prime factorization of 21872015 is 5 × 11 × 397673.
Since it has a total of 3 prime factors.
6 , 2 , 74 , 60 , 621 , 775 , 4139 , 3183 , 88601 , 68039 , 564747 , 206059 , 9148371 , 9550212 , 66748311 , 79094727 , 141076258 , 436119098 , 1479689652 , 4813554005
n×2
43744030
n×3
65616045
n×4
87488060
n×5
109360075
n÷2
10936007.5
n÷3
7290671.6666667
n÷3
5468003.75
n÷5
4374403
n2
478385040160225
n3
1.046324477416E+22
n4
2.288522466491E+29
n5
5.0054597714928E+36
2 √n
4676.7526126576
3 √n
279.65951385028
4 √n
68.386786827995
5 √n
29.374992135916
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
-21872014
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 21872015 can be divided by 8 positive divisors.
The sum of these divisors (counting 21872015) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011011011110110001111
3
Ternary
1112011012202122
4
Quaternary
1103123312033
5
Quinary
21044401030
6
Senary
2100443155
8
Octal
123336617
10
Decimal
21872015
12
Duodecimal
73a94bb
16
Hexadecimal
14dbd8f
20
Vigesimal
6ge00f
36
Base36
d0sjz
md5
8473542651e5d02c845ed2fb441d3c42
sha1
09fceb388960e84a29470482133d9668d67e9f80
sha256
746e0d6f6d8c5fec762a2f11fd3fe490214bac0640f78e9dc503e6db7f960172
sha512
e98b2a68c357ea970a4afe2953336ca047fcc2bcf3c9f83f37d5ae4cd1f0edd389b5ccdac68d3dd9e6559ea396a60d3f5fefa525e858f22fe6ecb3f03ef8793f
ripemd-160
d9047c302c3ec49f9dca1c15cfc097be560f75e0
Diameter
43744030
Circumference
137425923.28641
Area
1.5028909277546E+15
Volume
4.3828337220284E+22
Surface area
6.0115637110185E+15
Circumference
137425923.28641
Perimeter
87488060
Area
478385040160225
Diagonal
30931700.249428
Surface area
2870310240961350
Volume
1.046324477416E+22
Space diagonal
37883441.243909
Perimeter
65616045
Area
2.071467987846E+14
Altitude
18941720.621954
Surface area
2.071467987846E+14
Volume
1.2331052221705E+21
Height
10310566.749809