20138979 is an odd 8-digits composite number following 20138978
and preceding 20138980 . In scientific notation, it is written as 2.0138979 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 11481600 positive integers (up to 20138979) that are relatively prime to 20138979.
20138979 has 8 divisors, whose sum is 21146400
The reverse of 20138979 is 97983102
Previous prime number is 599
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred thirty-eight thousand nine hundred seventy-nine
Scientific notation
2.0138979 × 10^7
Engineering notation
2.0138979 × 10^6
Prime Factorization
21 × 599 × 1601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138979
Product of the distinct prime numbers
The prime factorization of 20138979 is 21 × 599 × 1601.
Since it has a total of 3 prime factors.
6 , 6 , 93 , 18 , 567 , 496 , 3175 , 4580 , 27833 , 47181 , 962853 , 242130 , 8989870 , 8185368 , 43677370 , 55863079 , 170631000 , 541471133 , 3864807590 , 9459495988
n×2
40277958
n×3
60416937
n×4
80555916
n×5
100694895
n÷2
10069489.5
n÷3
6712993
n÷3
5034744.75
n÷5
4027795.8
n2
405578475162441
n3
8.1679363941484E+21
n4
1.6449389951509E+29
n5
3.3127391879625E+36
2 √n
4487.6473791955
3 √n
272.0690559598
4 √n
66.989905054385
5 √n
28.893988114742
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
-20138978
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 20138979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101111100011
3
Ternary
1101220011111010
4
Quaternary
1030310233203
5
Quinary
20123421404
6
Senary
1555352003
8
Octal
114645743
10
Decimal
20138979
12
Duodecimal
68b2603
16
Hexadecimal
1334be3
20
Vigesimal
65h78j
36
Base36
bznc3
md5
52c0874b4d62aad65edc0ad5accd9ea2
sha1
9a4061c3ff4aacc37cb1dc3c6cfe82e2b59bf964
sha256
3fb5ad97cd766293688d9738f7b31471d49998a2273ca787382c214e1c938674
sha512
348b9c77a38f44fb53192e7b3c602bbfb3b2119934bd732e11a10ffbb8ffcbf72ff7886b9967c8c000d10fb2b5bc6d6423c0832ef5cc60d39b9676d1420f93e2
ripemd-160
718a216abc6f68c5f11c5ec84ea0777b0ae19e67
Diameter
40277958
Circumference
126536936.9544
Area
1.2741623580245E+15
Volume
3.4213771961127E+22
Surface area
5.0966494320979E+15
Circumference
126536936.9544
Perimeter
80555916
Area
405578475162441
Diagonal
28480817.234147
Surface area
2433470850974646
Volume
8.1679363941484E+21
Space diagonal
34881734.840563
Perimeter
60416937
Area
1.7562063135941E+14
Altitude
17440867.420281
Surface area
1.7562063135941E+14
Volume
9.6260053543379E+20
Height
9493605.7447157