20139921 is an odd 8-digits composite number following 20139920
and preceding 20139922 . In scientific notation, it is written as 2.0139921 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13426560 positive integers (up to 20139921) that are relatively prime to 20139921.
20139921 has 8 divisors, whose sum is 27847904
The reverse of 20139921 is 12993102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred thirty-nine thousand nine hundred twenty-one
Scientific notation
2.0139921 × 10^7
Engineering notation
2.0139921 × 10^6
Prime Factorization
27 × 3 × 248641
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20139921
Product of the distinct prime numbers
The prime factorization of 20139921 is 27 × 3 × 248641.
Since it has a total of 3 prime factors.
6 , 2 , 84 , 92 , 853 , 114 , 5096 , 1050 , 24941 , 58950 , 412834 , 647712 , 3963940 , 7100010 , 75408008 , 73687959 , 847574316 , 918756258 , 2797113433 , 524273106
n×2
40279842
n×3
60419763
n×4
80559684
n×5
100699605
n÷2
10069960.5
n÷3
6713307
n÷3
5034980.25
n÷5
4027984.2
n2
405616417886241
n3
8.1690826125319E+21
n4
1.6452467845887E+29
n5
3.313514026712E+36
2 √n
4487.7523327385
3 √n
272.07329790035
4 √n
66.990688403229
5 √n
28.894258412731
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
-20139920
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 20139921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20139921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100111110010001
3
Ternary
1101220012210000
4
Quaternary
1030310332101
5
Quinary
20123434141
6
Senary
1555400213
8
Octal
114647621
10
Decimal
20139921
12
Duodecimal
68b3069
16
Hexadecimal
1334f91
20
Vigesimal
65h9g1
36
Base36
bzo29
md5
f15d682add4b07bc35ae0e2dd763cb84
sha1
452235a918e2bafb99eaf57785fb6916d5d13379
sha256
7a14bc71877aee83c38bebbd0fa2825bb8fd2ecb846ab069c1b6d88c084d02da
sha512
4530c49f8a6bb788d6ce651f53b2c9752b9844b19a4ff07a9573aea66164e4fb0461ec4ba4e5c1ce36cc00f060f5f9f6a40cd68c292252f6b1b71faa7ed999d4
ripemd-160
e4c43d8aed527efb6e49a8b682b973072297066e
Diameter
40279842
Circumference
126542855.71496
Area
1.2742815586068E+15
Volume
3.4218573229464E+22
Surface area
5.0971262344273E+15
Circumference
126542855.71496
Perimeter
80559684
Area
405616417886241
Diagonal
28482149.423323
Surface area
2433698507317446
Volume
8.1690826125319E+21
Space diagonal
34883366.432423
Perimeter
60419763
Area
1.7563706104076E+14
Altitude
17441683.216212
Surface area
1.7563706104076E+14
Volume
9.6273561856574E+20
Height
9494049.8077742