20507979 is an odd 8-digits composite number following 20507978
and preceding 20507980 . In scientific notation, it is written as 2.0507979 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13413920 positive integers (up to 20507979) that are relatively prime to 20507979.
20507979 has 8 divisors, whose sum is 27860112
The reverse of 20507979 is 97970502
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million five hundred seven thousand nine hundred seventy-nine
Scientific notation
2.0507979 × 10^7
Engineering notation
2.0507979 × 10^6
Prime Factorization
3 × 53 × 128981
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20507979
Product of the distinct prime numbers
The prime factorization of 20507979 is 3 × 53 × 128981.
Since it has a total of 3 prime factors.
5 , 8 , 60 , 66 , 893 , 866 , 6007 , 9801 , 96925 , 64009 , 269793 , 346012 , 6589424 , 499192 , 32676512 , 14010160 , 452683069 , 424669205 , 8243417897 , 6284222088
n×2
41015958
n×3
61523937
n×4
82031916
n×5
102539895
n÷2
10253989.5
n÷3
6835993
n÷3
5126994.75
n÷5
4101595.8
n2
420577202664441
n3
8.6251884401211E+21
n4
1.7688518340105E+29
n5
3.6275576265998E+36
2 √n
4528.5736164934
3 √n
273.72068700537
4 √n
67.294677475216
5 √n
28.999103554036
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
-20507978
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 20507979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20507979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001110110101001011
3
Ternary
1102120220122210
4
Quaternary
1032032311023
5
Quinary
20222223404
6
Senary
2011320203
8
Octal
116166513
10
Decimal
20507979
12
Duodecimal
6a50063
16
Hexadecimal
138ed4b
20
Vigesimal
6839ij
36
Base36
c7k23
md5
c26141d04b457a9ea63307705daa8d20
sha1
ef131fe476bff9991970683f8250aed88e5a0ffc
sha256
88dd3890ec54554aefd5819d5521b6be746b088f9bc047adf2a6cb4cfae1b6de
sha512
20ad95ae4c6ef15d39d4af90601efbc1e54d1590ec7db35cbc582b02ec371906d04b8f4b444ec53328d3b602bc94cade6b25b409c8226f4fc2c7516212d362c3
ripemd-160
fac76d3d5107ef4bc41093f32f3cf5aaa4b1a2ab
Diameter
41015958
Circumference
128855432.33275
Area
1.321282250158E+15
Volume
3.6129104852416E+22
Surface area
5.2851290006318E+15
Circumference
128855432.33275
Perimeter
82031916
Area
420577202664441
Diagonal
29002662.038663
Surface area
2523463215986646
Volume
8.6251884401211E+21
Space diagonal
35520861.588556
Perimeter
61523937
Area
1.8211527088E+14
Altitude
17760430.794278
Surface area
1.8211527088E+14
Volume
1.0164882058369E+21
Height
9667554.0128875