20807810 is an even 8-digits composite number following 20807809
and preceding 20807811 . In scientific notation, it is written as 2.0807810 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 8217456 positive integers (up to 20807810) that are relatively prime to 20807810.
20807810 has 16 divisors, whose sum is 37929600
The reverse of 20807810 is 01870802
Previous prime number is 79
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million eight hundred seven thousand eight hundred ten
Scientific notation
2.0807810 × 10^7
Engineering notation
2.0807810 × 10^6
Prime Factorization
2 × 5 × 79 × 26339
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20807810
Product of the distinct prime numbers
The prime factorization of 20807810 is 2 × 5 × 79 × 26339.
Since it has a total of 4 prime factors.
5 , 9 , 9 , 19 , 439 , 652 , 9274 , 9665 , 21478 , 97379 , 85908 , 223202 , 6559711 , 6584358 , 64497072 , 39910097 , 969409666 , 506740562 , 6994231346 , 7702027194
n×2
41615620
n×3
62423430
n×4
83231240
n×5
104039050
n÷2
10403905
n÷3
6935936.6666667
n÷3
5201952.5
n÷5
4161562
n2
432964956996100
n3
9.009052561833E+21
n4
1.8745865398663E+29
n5
3.9006040550096E+36
2 √n
4561.5578479287
3 √n
275.04818990201
4 √n
67.539305947935
5 √n
29.083406582089
1 , 2 , 5 , 10 , 79 , 158 , 395 , 790 , 26339 , 52678 , 131695 , 263390 , 2080781 , 4161562 , 10403905 , 20807810
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
-20807809
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 20807810 can be divided by 16 positive divisors.
The sum of these divisors (counting 20807810) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000000010000010
3
Ternary
1110011010221122
4
Quaternary
1033120002002
5
Quinary
20311322220
6
Senary
2021552242
8
Octal
117300202
10
Decimal
20807810
12
Duodecimal
6b75682
16
Hexadecimal
13d8082
20
Vigesimal
6a0jaa
36
Base36
cdzeq
md5
402d6349ee87bf8c346e7e2d140e9d54
sha1
7be861155816187d0adda79ba2f326678afb6a83
sha256
00276a488a227d05ce47a07fa0b65f77b8e3e8f119439957784ad6799aa59b49
sha512
d2d4003febdb80188f50762b1548e540026d2adc5858527afee4dcdd54708d719c5304beb1cc4c38f3b9912128f48b4a678c608dce5c531693ca66f777a1798d
ripemd-160
71b24670f43f9d96f615c61495a835f1fa1752e7
Diameter
41615620
Circumference
130739326.06658
Area
1.3601995281608E+15
Volume
3.7737031125412E+22
Surface area
5.4407981126431E+15
Circumference
130739326.06658
Perimeter
83231240
Area
432964956996100
Diagonal
29426687.105283
Surface area
2597789741976600
Volume
9.009052561833E+21
Space diagonal
36040184.11424
Perimeter
62423430
Area
1.8747932585353E+14
Altitude
18020092.05712
Surface area
1.8747932585353E+14
Volume
1.061727026423E+21
Height
9808895.7017608