20179985 is an odd 8-digits composite number following 20179984
and preceding 20179986 . In scientific notation, it is written as 2.0179985 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 13462848 positive integers (up to 20179985) that are relatively prime to 20179985.
20179985 has 16 divisors, whose sum is 28425216
The reverse of 20179985 is 58997102
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million one hundred seventy-nine thousand nine hundred eighty-five
Scientific notation
2.0179985 × 10^7
Engineering notation
2.0179985 × 10^6
Prime Factorization
5 × 7 × 37 × 15583
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20179985
Product of the distinct prime numbers
The prime factorization of 20179985 is 5 × 7 × 37 × 15583.
Since it has a total of 4 prime factors.
3 , 8 , 96 , 59 , 283 , 8 , 1024 , 3037 , 64231 , 37247 , 580401 , 313803 , 8779652 , 1466584 , 74057421 , 78364280 , 119029178 , 734832647 , 4407246352 , 483067943
n×2
40359970
n×3
60539955
n×4
80719940
n×5
100899925
n÷2
10089992.5
n÷3
6726661.6666667
n÷3
5044996.25
n÷5
4035997
n2
407231794600225
n3
8.2179315065556E+21
n4
1.6583773453332E+29
n5
3.3466029953164E+36
2 √n
4492.2138194881
3 √n
272.25358865436
4 √n
67.023979436379
5 √n
28.905745047002
1 , 5 , 7 , 35 , 37 , 185 , 259 , 1295 , 15583 , 77915 , 109081 , 545405 , 576571 , 2882855 , 4035997 , 20179985
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20179984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20179985 can be divided by 16 positive divisors.
The sum of these divisors (counting 20179985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111110110000010001
3
Ternary
1101222020201212
4
Quaternary
1030332300101
5
Quinary
20131224420
6
Senary
2000305505
8
Octal
114766021
10
Decimal
20179985
12
Duodecimal
6912295
16
Hexadecimal
133ec11
20
Vigesimal
6629j5
36
Base36
c0iz5
md5
ce09b18834862079a9a6add2717b134a
sha1
2c68c4987c1e4136b24b8066453256c57b8844dc
sha256
e536e2aabf990b6b89a2541c468f35d34f4505565a61e14430b22215c346502f
sha512
024d8a5747884f4d2c77f8898eafa6850307e0f3fc877e27db160b449a465f8a5c1a65deb07c5c682bf914e9351703a7e9e780568b4ba8cf782218cd7ce65e82
ripemd-160
26e79b0b0619209610a783561a6090c5cc42a5e0
Diameter
40359970
Circumference
126794585.2511
Area
1.2793564142243E+15
Volume
3.4423190998266E+22
Surface area
5.117425656897E+15
Circumference
126794585.2511
Perimeter
80719940
Area
407231794600225
Diagonal
28538808.475486
Surface area
2443390767601350
Volume
8.2179315065556E+21
Space diagonal
34952759.315978
Perimeter
60539955
Area
1.7633653967626E+14
Altitude
17476379.657989
Surface area
1.7633653967626E+14
Volume
9.6849251593534E+20
Height
9512936.1584952