20809730 is an even 8-digits composite number following 20809729
and preceding 20809731 . In scientific notation, it is written as 2.0809730 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 8288112 positive integers (up to 20809730) that are relatively prime to 20809730.
20809730 has 16 divisors, whose sum is 37618560
The reverse of 20809730 is 03790802
Previous prime number is 239
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eight hundred nine thousand seven hundred thirty
Scientific notation
2.0809730 × 10^7
Engineering notation
2.0809730 × 10^6
Prime Factorization
2 × 5 × 239 × 8707
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20809730
Product of the distinct prime numbers
The prime factorization of 20809730 is 2 × 5 × 239 × 8707.
Since it has a total of 4 prime factors.
10 , 1 , 17 , 34 , 402 , 167 , 7406 , 4773 , 15214 , 36914 , 357236 , 266252 , 6053339 , 9813397 , 88382677 , 37811087 , 519143247 , 853153444 , 3492483337 , 7854464189
n×2
41619460
n×3
62429190
n×4
83238920
n×5
104048650
n÷2
10404865
n÷3
6936576.6666667
n÷3
5202432.5
n÷5
4161946
n2
433044862672900
n3
9.0115466701101E+21
n4
1.8752785308739E+29
n5
3.9024039902283E+36
2 √n
4561.7682974917
3 √n
275.05664948653
4 √n
67.54086390839
5 √n
29.08394328518
1 , 2 , 5 , 10 , 239 , 478 , 1195 , 2390 , 8707 , 17414 , 43535 , 87070 , 2080973 , 4161946 , 10404865 , 20809730
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
-20809729
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 20809730 can be divided by 16 positive divisors.
The sum of these divisors (counting 20809730) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000100000000010
3
Ternary
1110011020120202
4
Quaternary
1033120200002
5
Quinary
20311402410
6
Senary
2022005202
8
Octal
117304002
10
Decimal
20809730
12
Duodecimal
6b76802
16
Hexadecimal
13d8802
20
Vigesimal
6a146a
36
Base36
ce0w2
md5
276ebfbd2ccddec89522484093ba88e6
sha1
9579987b8e5ddbb94ab747ecdf6261ce0bc0f852
sha256
14019de854ada665c0a1878227b492135b4c8c999bbb03d43f52df339adeae81
sha512
1c93949e941fa1ff32d72694d84724980d6f10c9d8cc41612a1f20efa0720592cf9cca07a1229109a8f18eea0fc56e537e74affc00a0791f50918cbf064681e2
ripemd-160
fbbad686ef371358dae3d6dde190f5fd47964ee4
Diameter
41619460
Circumference
130751389.78237
Area
1.360450559248E+15
Volume
3.7747478421733E+22
Surface area
5.4418022369919E+15
Circumference
130751389.78237
Perimeter
83238920
Area
433044862672900
Diagonal
29429402.395322
Surface area
2598269176037400
Volume
9.0115466701101E+21
Space diagonal
36043509.65179
Perimeter
62429190
Area
1.8751392602654E+14
Altitude
18021754.825895
Surface area
1.8751392602654E+14
Volume
1.0620209599023E+21
Height
9809800.7984408