20808615 is an odd 8-digits composite number following 20808614
and preceding 20808616 . In scientific notation, it is written as 2.0808615 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 10797696 positive integers (up to 20808615) that are relatively prime to 20808615.
20808615 has 16 divisors, whose sum is 34194528
The reverse of 20808615 is 51680802
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million eight hundred eight thousand six hundred fifteen
Scientific notation
2.0808615 × 10^7
Engineering notation
2.0808615 × 10^6
Prime Factorization
3 × 5 × 37 × 37493
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20808615
Product of the distinct prime numbers
The prime factorization of 20808615 is 3 × 5 × 37 × 37493.
Since it has a total of 4 prime factors.
5 , 6 , 18 , 62 , 557 , 495 , 9600 , 916 , 37612 , 99427 , 195846 , 744863 , 6876902 , 436230 , 45506104 , 72079514 , 299611960 , 639558444 , 223663528 , 6466185750
n×2
41617230
n×3
62425845
n×4
83234460
n×5
104043075
n÷2
10404307.5
n÷3
6936205
n÷3
5202153.75
n÷5
4161723
n2
432998458218225
n3
9.0100982126566E+21
n4
1.8748766481936E+29
n5
3.9013586344751E+36
2 √n
4561.6460844743
3 √n
275.05173682241
4 √n
67.539959168438
5 √n
29.083631610864
1 , 3 , 5 , 15 , 37 , 111 , 185 , 555 , 37493 , 112479 , 187465 , 562395 , 1387241 , 4161723 , 6936205 , 20808615
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
-20808614
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 20808615 can be divided by 16 positive divisors.
The sum of these divisors (counting 20808615) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000001110100111
3
Ternary
1110011012001110
4
Quaternary
1033120032213
5
Quinary
20311333430
6
Senary
2022000103
8
Octal
117301647
10
Decimal
20808615
12
Duodecimal
6b76033
16
Hexadecimal
13d83a7
20
Vigesimal
6a11af
36
Base36
ce013
md5
179f73d367a1ddbdd12ceccf162a1e01
sha1
8957a876d5f7427ca5986d89ad14896a6354d0e4
sha256
4901eb369a4053c82d45ce2da4ddf334814289f47fec4971244a8a147afb79a6
sha512
5c90d0358613423c3f80c3678d4ad607f28a081cf52d9bacf8d91a5e6766d80913349d69fd5b6496b9bb8b50ad18dcd61fbd934f585c698afca6e6ae7bd4a8e7
ripemd-160
b54263d1f3e47fc0bec329361e51d48d82d4dce7
Diameter
41617230
Circumference
130744384.03076
Area
1.3603047753541E+15
Volume
3.7741411137339E+22
Surface area
5.4412191014163E+15
Circumference
130744384.03076
Perimeter
83234460
Area
432998458218225
Diagonal
29427825.5472
Surface area
2597990749309350
Volume
9.0100982126566E+21
Space diagonal
36041578.41514
Perimeter
62425845
Area
1.8749383230824E+14
Altitude
18020789.20757
Surface area
1.8749383230824E+14
Volume
1.0618502575544E+21
Height
9809275.1824001