20807639 is an odd 8-digits composite number following 20807638
and preceding 20807640 . In scientific notation, it is written as 2.0807639 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20702880 positive integers (up to 20807639) that are relatively prime to 20807639.
20807639 has 4 divisors, whose sum is 20912400
The reverse of 20807639 is 93670802
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million eight hundred seven thousand six hundred thirty-nine
Scientific notation
2.0807639 × 10^7
Engineering notation
2.0807639 × 10^6
Prime Factorization
199 × 104561
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20807639
Product of the distinct prime numbers
The prime factorization of 20807639 is 199 × 104561.
Since it has a total of 2 prime factors.
1 , 2 , 82 , 65 , 807 , 878 , 1822 , 903 , 21829 , 88886 , 117315 , 150389 , 838087 , 1134131 , 51631469 , 35947704 , 210215596 , 201079801 , 5408160746 , 2228555788
n×2
41615278
n×3
62422917
n×4
83230556
n×5
104038195
n÷2
10403819.5
n÷3
6935879.6666667
n÷3
5201909.75
n÷5
4161527.8
n2
432957840754321
n3
9.0088304526354E+21
n4
1.8745249187064E+29
n5
3.9004437804948E+36
2 √n
4561.5391042936
3 √n
275.04743644502
4 √n
67.539167186853
5 √n
29.083358780048
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20807638
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20807639 can be divided by 4 positive divisors.
The sum of these divisors (counting 20807639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111111111010111
3
Ternary
1110011010201022
4
Quaternary
1033113333113
5
Quinary
20311321024
6
Senary
2021551355
8
Octal
117277727
10
Decimal
20807639
12
Duodecimal
6b7555b
16
Hexadecimal
13d7fd7
20
Vigesimal
6a0j1j
36
Base36
cdz9z
md5
92e6be015792871a791b9efd483f5c1c
sha1
6d2b5d59271bb03c95403e25508f2647ffcad3ec
sha256
dfde84b80076ad4364936441d3711106f04d117cac78c8d665f1ce1901cbf66d
sha512
8900925104a28460f10f5bba6e6334a64ad73493053a4bd0b615ff41dbd159090a071753bf95bbbda0cc0be1bfb2487bb604692c3db3013d6ce154c55073a970
ripemd-160
3289a702c2757a7d3ce13e896ffdea055ae2cc90
Diameter
41615278
Circumference
130738251.6419
Area
1.3601771718279E+15
Volume
3.7736100756581E+22
Surface area
5.4407086873115E+15
Circumference
130738251.6419
Perimeter
83230556
Area
432957840754321
Diagonal
29426445.274763
Surface area
2597747044525926
Volume
9.0088304526354E+21
Space diagonal
36039887.933552
Perimeter
62422917
Area
1.8747624443045E+14
Altitude
18019943.966776
Surface area
1.8747624443045E+14
Volume
1.0617008506031E+21
Height
9808815.0915878