20679985 is an odd 8-digits composite number following 20679984
and preceding 20679986 . In scientific notation, it is written as 2.0679985 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 16543984 positive integers (up to 20679985) that are relatively prime to 20679985.
20679985 has 4 divisors, whose sum is 24815988
The reverse of 20679985 is 58997602
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million six hundred seventy-nine thousand nine hundred eighty-five
Scientific notation
2.0679985 × 10^7
Engineering notation
2.0679985 × 10^6
Prime Factorization
5 × 4135997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20679985
Product of the distinct prime numbers
The prime factorization of 20679985 is 5 × 4135997.
Since it has a total of 2 prime factors.
6 , 1 , 11 , 40 , 689 , 924 , 8695 , 3301 , 31905 , 61320 , 145100 , 5007 , 1160068 , 2472999 , 28129480 , 31290665 , 168203518 , 932446550 , 4625310297 , 42266108
n×2
41359970
n×3
62039955
n×4
82719940
n×5
103399925
n÷2
10339992.5
n÷3
6893328.3333333
n÷3
5169996.25
n÷5
4135997
n2
427661779600225
n3
8.844039187206E+21
n4
1.8289459773083E+29
n5
3.7822575376546E+36
2 √n
4547.5251511124
3 √n
274.48381407388
4 √n
67.435340520475
5 √n
29.047585846477
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20679984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20679985 can be divided by 4 positive divisors.
The sum of these divisors (counting 20679985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111000110100110001
3
Ternary
1102220122121101
4
Quaternary
1032320310301
5
Quinary
20243224420
6
Senary
2015124401
8
Octal
116706461
10
Decimal
20679985
12
Duodecimal
6b13701
16
Hexadecimal
13b8d31
20
Vigesimal
694jj5
36
Base36
cb8s1
md5
888a946ac9d6f30ee4a28c0c2a42ab86
sha1
4a3d5869ab0152e861566bb4a314ec5d0c00c5ee
sha256
8044a79d04ecf0e477bdaf28ceb6b575c8e62002b4be006869035df50f2b4a78
sha512
610afd6ac83b6fecdd6b7b01eecf5577463cfb23edf8268282987c1ca6ad58e5fc391a886cfb54abfbff99f655e9054df635d7322de9f8fda5f525a7551033d2
ripemd-160
3582fc55266e5be2c62669dd8f2c499b4ae1b1fa
Diameter
41359970
Circumference
129936177.90469
Area
1.3435391050132E+15
Volume
3.7045824718115E+22
Surface area
5.3741564200528E+15
Circumference
129936177.90469
Perimeter
82719940
Area
427661779600225
Diagonal
29245915.256672
Surface area
2565970677601350
Volume
8.844039187206E+21
Space diagonal
35818784.719762
Perimeter
62039955
Area
1.8518298268073E+14
Altitude
17909392.359881
Surface area
1.8518298268073E+14
Volume
1.0422800137255E+21
Height
9748638.4188907