20179989 is an odd 8-digits composite number following 20179988
and preceding 20179990 . In scientific notation, it is written as 2.0179989 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 13453308 positive integers (up to 20179989) that are relatively prime to 20179989.
20179989 has 8 divisors, whose sum is 29896320
The reverse of 20179989 is 98997102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million one hundred seventy-nine thousand nine hundred eighty-nine
Scientific notation
2.0179989 × 10^7
Engineering notation
2.0179989 × 10^6
Prime Factorization
3 × 9 × 747407
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20179989
Product of the distinct prime numbers
The prime factorization of 20179989 is 3 × 9 × 747407.
Since it has a total of 3 prime factors.
6 , 3 , 65 , 66 , 820 , 429 , 7146 , 1268 , 61589 , 67359 , 480696 , 359606 , 9785843 , 7536229 , 22121584 , 38791794 , 945055440 , 930938279 , 2403956528 , 8965601168
n×2
40359978
n×3
60539967
n×4
80719956
n×5
100899945
n÷2
10089994.5
n÷3
6726663
n÷3
5044997.25
n÷5
4035997.8
n2
407231956040121
n3
8.2179363933381E+21
n4
1.6583786602026E+29
n5
3.3466063120724E+36
2 √n
4492.2142647029
3 √n
272.25360664272
4 √n
67.023982757688
5 √n
28.905746192919
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
-20179988
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 20179989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20179989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111110110000010101
3
Ternary
1101222020202000
4
Quaternary
1030332300111
5
Quinary
20131224424
6
Senary
2000305513
8
Octal
114766025
10
Decimal
20179989
12
Duodecimal
6912299
16
Hexadecimal
133ec15
20
Vigesimal
6629j9
36
Base36
c0iz9
md5
218de48b0c6868c96601b5d8f4cdaab2
sha1
5821e443e2ab67e8282debf85ac5bc55dd454c20
sha256
1c2a196e6d2f4e8295f548b7c3e2181c10dbd3a6369ab933edf1e1cd184e41a0
sha512
5fb11c2771189af057aaf63596fe5fd728116bf1cf229f4bca5eaf26a6a59638db61cbdda8534f1c734c2e5613acb39654726854a887262be767336ddb777d57
ripemd-160
387da4bc9d0a98ba02ac95ac3d56f6b9de2b6202
Diameter
40359978
Circumference
126794610.38385
Area
1.2793569214026E+15
Volume
3.4423211467972E+22
Surface area
5.1174276856106E+15
Circumference
126794610.38385
Perimeter
80719956
Area
407231956040121
Diagonal
28538814.13234
Surface area
2443391736240726
Volume
8.2179363933381E+21
Space diagonal
34952766.244181
Perimeter
60539967
Area
1.7633660958179E+14
Altitude
17476383.122091
Surface area
1.7633660958179E+14
Volume
9.6849309184818E+20
Height
9512938.0441133