20189979 is an odd 8-digits composite number following 20189978
and preceding 20189980 . In scientific notation, it is written as 2.0189979 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 13203216 positive integers (up to 20189979) that are relatively prime to 20189979.
20189979 has 12 divisors, whose sum is 23115456
The reverse of 20189979 is 97998102
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million one hundred eighty-nine thousand nine hundred seventy-nine
Scientific notation
2.0189979 × 10^7
Engineering notation
2.0189979 × 10^6
Prime Factorization
9 × 9 × 53 × 4703
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2243331
Product of the distinct prime numbers
The prime factorization of 20189979 is 9 × 9 × 53 × 4703.
Since it has a total of 4 prime factors.
4 , 8 , 90 , 20 , 261 , 544 , 6153 , 5622 , 2068 , 63152 , 945522 , 588344 , 8035279 , 7349752 , 11452513 , 30360739 , 946608904 , 290369928 , 9982642377 , 7470327515
n×2
40379958
n×3
60569937
n×4
80759916
n×5
100949895
n÷2
10094989.5
n÷3
6729993
n÷3
5047494.75
n÷5
4037995.8
n2
407635252020441
n3
8.2301471779524E+21
n4
1.6616649868977E+29
n5
3.35489811905E+36
2 √n
4493.3260509338
3 √n
272.29852514827
4 √n
67.032276187921
5 √n
28.908607554638
1 , 9 , 53 , 81 , 477 , 4293 , 4703 , 42327 , 249259 , 380943 , 2243331 , 20189979
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20189978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20189979 can be divided by 12 positive divisors.
The sum of these divisors (counting 20189979) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101000001001100011011
3
Ternary
1101222202110000
4
Quaternary
1031001030123
5
Quinary
20132034404
6
Senary
2000424043
8
Octal
115011433
10
Decimal
20189979
12
Duodecimal
6918023
16
Hexadecimal
134131b
20
Vigesimal
663eij
36
Base36
c0qor
md5
65d229d1dabdc5ee0968af660bab7ef4
sha1
524624b94ac37f4fec6f220fe616c4d385bcace1
sha256
2969c86ea9cc0e0c6683400b2f50ed80c68d0d2e1be212a8e6b501b806de87aa
sha512
291a3b465ac15cb85780757008cc23c4b499093cb9a1256c5eb102a4a17e276d11c408b150710cd38bd4e3a8698c6531f01be3b343a229c28d9783989ec8f93b
ripemd-160
8bcfa6857f147ac429a3e4b2e8c093d4873f3148
Diameter
40379958
Circumference
126857379.40506
Area
1.2806239130916E+15
Volume
3.4474359882957E+22
Surface area
5.1224956523666E+15
Circumference
126857379.40506
Perimeter
80759916
Area
407635252020441
Diagonal
28552942.125828
Surface area
2445811512122646
Volume
8.2301471779524E+21
Space diagonal
34970069.431749
Perimeter
60569937
Area
1.7651124186389E+14
Altitude
17485034.715874
Surface area
1.7651124186389E+14
Volume
9.6993214661558E+20
Height
9517647.375276