20790821 is an odd 8-digits prime number following 20790820
and preceding 20790822 . In scientific notation, it is written as 2.0790821 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20790820 positive integers (up to 20790821) that are relatively prime to 20790821.
20790821 has 2 divisors, whose sum is 20790822
The reverse of 20790821 is 12809702
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million seven hundred ninety thousand eight hundred twenty-one
Scientific notation
2.0790821 × 10^7
Engineering notation
2.0790821 × 10^6
Prime Factorization
20790821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20790821
Product of the distinct prime numbers
The prime factorization of 20790821 is 20790821.
Since it has a total of 1 prime factors.
8 , 8 , 93 , 75 , 862 , 228 , 2672 , 1124 , 82281 , 9676 , 557687 , 333680 , 1272823 , 6823783 , 21222170 , 76471238 , 262008053 , 218420825 , 5305015213 , 6642696857
n×2
41581642
n×3
62372463
n×4
83163284
n×5
103954105
n÷2
10395410.5
n÷3
6930273.6666667
n÷3
5197705.25
n÷5
4158164.2
n2
432258237854041
n3
8.9870036489988E+21
n4
1.8684718419268E+29
n5
3.8847063609041E+36
2 √n
4559.695274906
3 √n
274.97331311278
4 √n
67.525515732247
5 √n
29.07865587127
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20790822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10395411
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4559.6953845624
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999038037
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20790821 can be divided by 2 positive divisors.
The sum of these divisors (counting 20790821) is 20790822, the average is 10395411.
Base
System
Value
2
Binary
1001111010011111000100101
3
Ternary
1110010021122102
4
Quaternary
1033103320211
5
Quinary
20310301241
6
Senary
2021341445
8
Octal
117237045
10
Decimal
20790821
12
Duodecimal
6b67885
16
Hexadecimal
13d3e25
20
Vigesimal
69ih11
36
Base36
cdmat
md5
60ef70432945818b5fd29a05f09e2148
sha1
5756c7ca4cbff5509357b01e507148fe8c7ce594
sha256
4606a2342a55c24121d4c6c3bd6d9746b7f6997c570114d7cecd3de9d80c0759
sha512
33e76c2409360e4c7e4f0563e2786f762225d1a8c97d84eab2e26a9ecdf7ad457d1f5a7d7d1ba3c78dd11bc4caa52da4a1e0def30fdf212984a9b331c31d7c8c
ripemd-160
14a6016a54567125f7cf45ed35bb650831982fb3
Diameter
41581642
Circumference
130632581.0314
Area
1.3579793044959E+15
Volume
3.7644672855306E+22
Surface area
5.4319172179837E+15
Circumference
130632581.0314
Perimeter
83163284
Area
432258237854041
Diagonal
29402661.031071
Surface area
2593549427124246
Volume
8.9870036489988E+21
Space diagonal
36010758.30307
Perimeter
62372463
Area
1.8717330748835E+14
Altitude
18005379.151535
Surface area
1.8717330748835E+14
Volume
1.0591285371259E+21
Height
9800887.0103571