20808730 is an even 8-digits composite number following 20808729
and preceding 20808731 . In scientific notation, it is written as 2.0808730 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 8120320 positive integers (up to 20808730) that are relatively prime to 20808730.
20808730 has 16 divisors, whose sum is 38370024
The reverse of 20808730 is 03780802
Previous prime number is 41
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred eight thousand seven hundred thirty
Scientific notation
2.0808730 × 10^7
Engineering notation
2.0808730 × 10^6
Prime Factorization
2 × 5 × 41 × 50753
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20808730
Product of the distinct prime numbers
The prime factorization of 20808730 is 2 × 5 × 41 × 50753.
Since it has a total of 4 prime factors.
1 , 9 , 52 , 56 , 730 , 460 , 2359 , 1947 , 74530 , 74986 , 100328 , 72915 , 7782474 , 5854957 , 60316735 , 61588685 , 512805351 , 305419980 , 872365930 , 7759843043
n×2
41617460
n×3
62426190
n×4
83234920
n×5
104043650
n÷2
10404365
n÷3
6936243.3333333
n÷3
5202182.5
n÷5
4161746
n2
433003244212900
n3
9.0102475979503E+21
n4
1.874918094989E+29
n5
3.901466441074E+36
2 √n
4561.6586895558
3 √n
275.05224351786
4 √n
67.540052484106
5 √n
29.083663757263
1 , 2 , 5 , 10 , 41 , 82 , 205 , 410 , 50753 , 101506 , 253765 , 507530 , 2080873 , 4161746 , 10404365 , 20808730
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
-20808729
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 20808730 can be divided by 16 positive divisors.
The sum of these divisors (counting 20808730) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000010000011010
3
Ternary
1110011012012201
4
Quaternary
1033120100122
5
Quinary
20311334410
6
Senary
2022000414
8
Octal
117302032
10
Decimal
20808730
12
Duodecimal
6b7610a
16
Hexadecimal
13d841a
20
Vigesimal
6a11ga
36
Base36
ce04a
md5
f025e2a96dddcd04d2db722cb078c5cc
sha1
830d0a9baab85e3d81b8857b509202be1d697c4d
sha256
34d389a1abf81143145815e1bf95624f8edd259759ba6c640ccda10ab64b6b9b
sha512
6f415d4a756a9cb577c7385f21a78575576fa8514a5ab28db3036dbff8e8418c2f1ea1269234568de38aa826e85317111b79878ae5e82032571e9807e0201420
ripemd-160
1414ce6ecba919e146049bdf5b149ff761e32dd7
Diameter
41617460
Circumference
130745106.59707
Area
1.3603198109998E+15
Volume
3.7742036880994E+22
Surface area
5.4412792439992E+15
Circumference
130745106.59707
Perimeter
83234920
Area
433003244212900
Diagonal
29427988.18176
Surface area
2598019465277400
Volume
9.0102475979503E+21
Space diagonal
36041777.600983
Perimeter
62426190
Area
1.8749590470472E+14
Altitude
18020888.800491
Surface area
1.8749590470472E+14
Volume
1.0618678627801E+21
Height
9809329.39392