20402979 is an odd 8-digits composite number following 20402978
and preceding 20402980 . In scientific notation, it is written as 2.0402979 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 12440736 positive integers (up to 20402979) that are relatively prime to 20402979.
20402979 has 8 divisors, whose sum is 21478560
The reverse of 20402979 is 97920402
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million four hundred two thousand nine hundred seventy-nine
Scientific notation
2.0402979 × 10^7
Engineering notation
2.0402979 × 10^6
Prime Factorization
57 × 29 × 12343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20402979
Product of the distinct prime numbers
The prime factorization of 20402979 is 57 × 29 × 12343.
Since it has a total of 3 prime factors.
1 , 9 , 9 , 46 , 826 , 674 , 5666 , 3107 , 61105 , 75299 , 82876 , 570668 , 8225309 , 7791391 , 72154196 , 80707772 , 820228535 , 888703917 , 954279881 , 4650146895
n×2
40805958
n×3
61208937
n×4
81611916
n×5
102014895
n÷2
10201489.5
n÷3
6800993
n÷3
5100744.75
n÷5
4080595.8
n2
416281552074441
n3
8.4933837650622E+21
n4
1.7329033059751E+29
n5
3.535638976084E+36
2 √n
4516.9656850589
3 √n
273.25274129373
4 √n
67.208375110986
5 √n
28.969347711052
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
-20402978
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 20402979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20402979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101001100100011
3
Ternary
1102101120121220
4
Quaternary
1031311030203
5
Quinary
20210343404
6
Senary
2005150123
8
Octal
115651443
10
Decimal
20402979
12
Duodecimal
69bb343
16
Hexadecimal
1375323
20
Vigesimal
67a78j
36
Base36
c5b1f
md5
3ece62d738b5e9d04fdfa208f2a5b0ff
sha1
f22384ccf5cbead1b71b84e04d3dfee61b0b3396
sha256
476c93cb27900501e7fa3e06869915ef20b51d176bfcb1e2d513b511dd4ade95
sha512
8fecf65a6ee3444e33631308f5ef64001650b5a450246ed5362e25da7acfd5d03f6d21b20e71da7a5906b830c6f6b1e948a3d03f28ce76abe6416d5ecda39c1f
ripemd-160
750fff8c839ac66919e47a105d93c81ee710bfbe
Diameter
40805958
Circumference
128195697.87549
Area
1.307787065822E+15
Volume
3.5577002720584E+22
Surface area
5.2311482632881E+15
Circumference
128195697.87549
Perimeter
81611916
Area
416281552074441
Diagonal
28854169.614613
Surface area
2497689312446646
Volume
8.4933837650622E+21
Space diagonal
35338996.253761
Perimeter
61208937
Area
1.8025519961164E+14
Altitude
17669498.12688
Surface area
1.8025519961164E+14
Volume
1.0009548759159E+21
Height
9618056.5382045