20407979 is an odd 8-digits composite number following 20407978
and preceding 20407980 . In scientific notation, it is written as 2.0407979 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 19776096 positive integers (up to 20407979) that are relatively prime to 20407979.
20407979 has 8 divisors, whose sum is 21044400
The reverse of 20407979 is 97970402
Previous prime number is 1949
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million four hundred seven thousand nine hundred seventy-nine
Scientific notation
2.0407979 × 10^7
Engineering notation
2.0407979 × 10^6
Prime Factorization
37 × 1949 × 283
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20407979
Product of the distinct prime numbers
The prime factorization of 20407979 is 37 × 1949 × 283.
Since it has a total of 3 prime factors.
10 , 7 , 86 , 61 , 157 , 92 , 7268 , 775 , 27569 , 25858 , 147957 , 399898 , 632412 , 3608711 , 86507250 , 90467536 , 650036897 , 790559476 , 9643163907 , 6070419531
n×2
40815958
n×3
61223937
n×4
81631916
n×5
102039895
n÷2
10203989.5
n÷3
6802659.6666667
n÷3
5101994.75
n÷5
4081595.8
n2
416485606864441
n3
8.4996295186918E+21
n4
1.7346026072524E+29
n5
3.5399733582153E+36
2 √n
4517.5191200481
3 √n
273.27506078141
4 √n
67.212492291598
5 √n
28.970767430614
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
-20407978
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 20407979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20407979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110110011010101011
3
Ternary
1102101211111002
4
Quaternary
1031312122223
5
Quinary
20211023404
6
Senary
2005225215
8
Octal
115663253
10
Decimal
20407979
12
Duodecimal
6a0220b
16
Hexadecimal
13766ab
20
Vigesimal
67ajij
36
Base36
c5ewb
md5
cc11e85419f91e7a4be3fa871db3aaf6
sha1
2580318796fd88fdca7a2beaf2d960c309b0e763
sha256
7ca2391072f087cfebfc2cc32741a26e7070287ed0f3a5c3d2d1a850a9047cc0
sha512
63641b574f991cf24367ae76e9351132f63f1939615ba3b4f9745f1e0dc5658357e127b1d77ac27148699dbfeedb9c748f562c8810be3b9a6dc4d51b7b926134
ripemd-160
75ce3aacebb108e471328b5683ddaf5092a9c9b3
Diameter
40815958
Circumference
128227113.80203
Area
1.3084281228512E+15
Volume
3.5603164872209E+22
Surface area
5.2337124914049E+15
Circumference
128227113.80203
Perimeter
81631916
Area
416485606864441
Diagonal
28861240.682425
Surface area
2498913641186646
Volume
8.4996295186918E+21
Space diagonal
35347656.507799
Perimeter
61223937
Area
1.8034355792759E+14
Altitude
17673828.253899
Surface area
1.8034355792759E+14
Volume
1.0016909450401E+21
Height
9620413.5608084