20408979 is an odd 8-digits composite number following 20408978
and preceding 20408980 . In scientific notation, it is written as 2.0408979 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 13605984 positive integers (up to 20408979) that are relatively prime to 20408979.
20408979 has 4 divisors, whose sum is 27211976
The reverse of 20408979 is 97980402
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million four hundred eight thousand nine hundred seventy-nine
Scientific notation
2.0408979 × 10^7
Engineering notation
2.0408979 × 10^6
Prime Factorization
3 × 6802993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20408979
Product of the distinct prime numbers
The prime factorization of 20408979 is 3 × 6802993.
Since it has a total of 2 prime factors.
9 , 2 , 34 , 63 , 405 , 851 , 178 , 3473 , 74488 , 43941 , 515324 , 803110 , 2818327 , 9372750 , 51808201 , 13537129 , 850547695 , 667222500 , 6102388550 , 5748712438
n×2
40817958
n×3
61226937
n×4
81635916
n×5
102044895
n÷2
10204489.5
n÷3
6802993
n÷3
5102244.75
n÷5
4081795.8
n2
416526423822441
n3
8.5008790367373E+21
n4
1.7349426174231E+29
n5
3.5408407445193E+36
2 √n
4517.62979891
3 √n
273.27952424146
4 √n
67.213315636933
5 √n
28.971051341134
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
-20408978
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 20408979 can be divided by 4 positive divisors.
The sum of these divisors (counting 20408979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110110101010010011
3
Ternary
1102101212212010
4
Quaternary
1031312222103
5
Quinary
20211041404
6
Senary
2005234003
8
Octal
115665223
10
Decimal
20408979
12
Duodecimal
6a02903
16
Hexadecimal
1376a93
20
Vigesimal
67b28j
36
Base36
c5fo3
md5
6be42bb4f5c20ce80047198bd323f14c
sha1
6e30a8bb0172479f4d677867a64e0356dbb907c1
sha256
fb8970c86ac468c4f86310397f794b2545a45083ce2f09ae90cd98da0034dbac
sha512
6569c10e5bb98af5a69d1f51a7162b3ffdb68d06704840dc5d7ec7dc33286d51b31552b7da5b2f6017997360d27fbb124297fb87871ed197c80157c68a8d94f9
ripemd-160
67fdb25a50c9a0542b2f55d2bd18134244a01602
Diameter
40817958
Circumference
128233396.98734
Area
1.3085563531066E+15
Volume
3.5608398841159E+22
Surface area
5.2342254124264E+15
Circumference
128233396.98734
Perimeter
81635916
Area
416526423822441
Diagonal
28862654.895988
Surface area
2499158542934646
Volume
8.5008790367373E+21
Space diagonal
35349388.558606
Perimeter
61226937
Area
1.8036123218886E+14
Altitude
17674694.279303
Surface area
1.8036123218886E+14
Volume
1.0018382021539E+21
Height
9620884.9653292