20685615 is an odd 8-digits composite number following 20685614
and preceding 20685616 . In scientific notation, it is written as 2.0685615 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 11005472 positive integers (up to 20685615) that are relatively prime to 20685615.
20685615 has 16 divisors, whose sum is 33177600
The reverse of 20685615 is 51658602
Previous prime number is 479
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred eighty-five thousand six hundred fifteen
Scientific notation
2.0685615 × 10^7
Engineering notation
2.0685615 × 10^6
Prime Factorization
5 × 3 × 479 × 2879
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20685615
Product of the distinct prime numbers
The prime factorization of 20685615 is 5 × 3 × 479 × 2879.
Since it has a total of 4 prime factors.
3 , 6 , 73 , 61 , 888 , 563 , 3403 , 9932 , 54921 , 79552 , 844987 , 429174 , 7557751 , 2437134 , 13802034 , 186432 , 372058612 , 902169635 , 9927148036 , 5561593824
n×2
41371230
n×3
62056845
n×4
82742460
n×5
103428075
n÷2
10342807.5
n÷3
6895205
n÷3
5171403.75
n÷5
4137123
n2
427894667928225
n3
8.8512643613161E+21
n4
1.8309384684141E+29
n5
3.7874088246303E+36
2 √n
4548.1441270039
3 √n
274.50872066283
4 √n
67.439929767193
5 √n
29.049167279949
1 , 3 , 5 , 15 , 479 , 1437 , 2395 , 2879 , 7185 , 8637 , 14395 , 43185 , 1379041 , 4137123 , 6895205 , 20685615
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
-20685614
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 20685615 can be divided by 16 positive divisors.
The sum of these divisors (counting 20685615) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010001100101111
3
Ternary
1102220221022220
4
Quaternary
1032322030233
5
Quinary
20243414430
6
Senary
2015210423
8
Octal
116721457
10
Decimal
20685615
12
Duodecimal
6b16a13
16
Hexadecimal
13ba32f
20
Vigesimal
695e0f
36
Base36
cbd4f
md5
d17b49384a12ae796b5c6753e896578c
sha1
486a7598c5e3f91486d787b58e400112d979639f
sha256
3dc7533a51e75f0de918afc63d9a965747993b02607459ee8b433e98074ecb19
sha512
5ec324ffbffa25c8dab6b8756ca667750c382d6516082d3ea5c4955a9c9789536e9d1dea672bcdf4668433a4d1d1538f05d317675d820e0f0f4b51739a395c5c
ripemd-160
b564f2c353d6370c47654af59fdc85c327350429
Diameter
41371230
Circumference
129971552.23797
Area
1.3442707452736E+15
Volume
3.7076089456656E+22
Surface area
5.3770829810942E+15
Circumference
129971552.23797
Perimeter
82742460
Area
427894667928225
Diagonal
29253877.279028
Surface area
2567368007569350
Volume
8.8512643613161E+21
Space diagonal
35828536.165809
Perimeter
62056845
Area
1.8528382628487E+14
Altitude
17914268.082904
Surface area
1.8528382628487E+14
Volume
1.0431315086602E+21
Height
9751292.4263428