20808213 is an odd 8-digits composite number following 20808212
and preceding 20808214 . In scientific notation, it is written as 2.0808213 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13794288 positive integers (up to 20808213) that are relatively prime to 20808213.
20808213 has 8 divisors, whose sum is 27900000
The reverse of 20808213 is 31280802
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million eight hundred eight thousand two hundred thirteen
Scientific notation
2.0808213 × 10^7
Engineering notation
2.0808213 × 10^6
Prime Factorization
3 × 179 × 38749
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20808213
Product of the distinct prime numbers
The prime factorization of 20808213 is 3 × 179 × 38749.
Since it has a total of 3 prime factors.
7 , 8 , 84 , 98 , 693 , 961 , 3046 , 7195 , 702 , 2703 , 743157 , 965747 , 6029971 , 8592762 , 25487053 , 80669613 , 116415134 , 302023258 , 2868223988 , 7582912065
n×2
41616426
n×3
62424639
n×4
83232852
n×5
104041065
n÷2
10404106.5
n÷3
6936071
n÷3
5202053.25
n÷5
4161642.6
n2
432981728253369
n3
9.0095760266042E+21
n4
1.8747317700127E+29
n5
3.9009817988292E+36
2 √n
4561.6020212202
3 √n
275.0499655767
4 √n
67.539632966283
5 √n
29.083519237116
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20808212
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20808213 can be divided by 8 positive divisors.
The sum of these divisors (counting 20808213) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000001000010101
3
Ternary
1110011011111120
4
Quaternary
1033120020111
5
Quinary
20311330323
6
Senary
2021554153
8
Octal
117301025
10
Decimal
20808213
12
Duodecimal
6b75959
16
Hexadecimal
13d8215
20
Vigesimal
6a10ad
36
Base36
cdzpx
md5
327148590190865c8e6f8ff7e38f6d2c
sha1
7d9605d18816e9e7b53fc9cf67d19fda65f294f9
sha256
7515c800804ea908758e60aecdd2c5c1b12ff96819d569ef01373d90f954be4b
sha512
dc2971b60d99e1996822c0cd8b2591746c848c95eb6d25f0907b3e69354cbe8bbe475410e64181f1d887e205320a5ac163f7d8beba8939d251f4addf02c05f2f
ripemd-160
476ab3d0f10c3de1a251bb9722b0a77394122378
Diameter
41616426
Circumference
130741858.19026
Area
1.3602522166194E+15
Volume
3.7739223809518E+22
Surface area
5.4410088664776E+15
Circumference
130741858.19026
Perimeter
83232852
Area
432981728253369
Diagonal
29427257.033348
Surface area
2597890369520214
Volume
9.0095760266042E+21
Space diagonal
36040882.130715
Perimeter
62424639
Area
1.8748658802095E+14
Altitude
18020441.065358
Surface area
1.8748658802095E+14
Volume
1.0617887173379E+21
Height
9809085.6777827