20691215 is an odd 8-digits composite number following 20691214
and preceding 20691216 . In scientific notation, it is written as 2.0691215 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 16552968 positive integers (up to 20691215) that are relatively prime to 20691215.
20691215 has 4 divisors, whose sum is 24829464
The reverse of 20691215 is 51219602
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million six hundred ninety-one thousand two hundred fifteen
Scientific notation
2.0691215 × 10^7
Engineering notation
2.0691215 × 10^6
Prime Factorization
5 × 4138243
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20691215
Product of the distinct prime numbers
The prime factorization of 20691215 is 5 × 4138243.
Since it has a total of 2 prime factors.
1 , 6 , 96 , 69 , 432 , 869 , 6260 , 1495 , 93302 , 4473 , 451342 , 524099 , 5002536 , 3217156 , 41564283 , 92776162 , 905414739 , 747760034 , 134739357 , 4222638354
n×2
41382430
n×3
62073645
n×4
82764860
n×5
103456075
n÷2
10345607.5
n÷3
6897071.6666667
n÷3
5172803.75
n÷5
4138243
n2
428126378176225
n3
8.8584549380156E+21
n4
1.8329219569029E+29
n5
3.7925382288499E+36
2 √n
4548.7597210668
3 √n
274.53349005185
4 √n
67.444493630443
5 √n
29.050739945048
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
-20691214
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 20691215 can be divided by 4 positive divisors.
The sum of these divisors (counting 20691215) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111011100100001111
3
Ternary
1102221020000022
4
Quaternary
1032323210033
5
Quinary
20244104330
6
Senary
2015252355
8
Octal
116734417
10
Decimal
20691215
12
Duodecimal
6b1a0bb
16
Hexadecimal
13bb90f
20
Vigesimal
69680f
36
Base36
cbhfz
md5
9b3c97fb9d2481ae9055dcc0b2e5b085
sha1
9660c61fa66590ea5b3e21de0dc1532d7c534f55
sha256
a697328d308ff93546f510ead7e74aa730df6f9366cefc0de8cd10aee6611c75
sha512
ddd3eefa66796bbcb7a153f8b062f97f8305ff2c4dd06e21d7b82926e3e6c4634b7f958703d89acfd086b5d1a5aa4ccf59a570ed26a35d84767082175646646c
ripemd-160
692e57a9653f23e08a2db2c6f320300835c25773
Diameter
41382430
Circumference
130006738.07569
Area
1.3449986844864E+15
Volume
3.7106209273901E+22
Surface area
5.3799947379457E+15
Circumference
130006738.07569
Perimeter
82764860
Area
428126378176225
Diagonal
29261796.874978
Surface area
2568758269057350
Volume
8.8584549380156E+21
Space diagonal
35838235.650331
Perimeter
62073645
Area
1.8538415976542E+14
Altitude
17919117.825166
Surface area
1.8538415976542E+14
Volume
1.043978926251E+21
Height
9753932.2916592