20809999 is an odd 8-digits composite number following 20809998
and preceding 20810000 . In scientific notation, it is written as 2.0809999 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 17570520 positive integers (up to 20809999) that are relatively prime to 20809999.
20809999 has 8 divisors, whose sum is 24138368
The reverse of 20809999 is 99990802
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million eight hundred nine thousand nine hundred ninety-nine
Scientific notation
2.0809999 × 10^7
Engineering notation
2.0809999 × 10^6
Prime Factorization
7 × 67 × 44371
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20809999
Product of the distinct prime numbers
The prime factorization of 20809999 is 7 × 67 × 44371.
Since it has a total of 3 prime factors.
2 , 8 , 2 , 47 , 835 , 252 , 9300 , 6626 , 58820 , 59580 , 395389 , 30398 , 7174830 , 6793207 , 46867546 , 29837582 , 372253216 , 458726471 , 4362430286 , 7137666223
n×2
41619998
n×3
62429997
n×4
83239996
n×5
104049995
n÷2
10404999.5
n÷3
6936666.3333333
n÷3
5202499.75
n÷5
4161999.8
n2
433056058380001
n3
9.0118961418318E+21
n4
1.8753754969962E+29
n5
3.9026562217116E+36
2 √n
4561.7977815769
3 √n
275.05783466802
4 √n
67.541082176531
5 √n
29.084018476355
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
-20809998
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 20809999 can be divided by 8 positive divisors.
The sum of these divisors (counting 20809999) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000100100001111
3
Ternary
1110011020221201
4
Quaternary
1033120210033
5
Quinary
20311404444
6
Senary
2022010331
8
Octal
117304417
10
Decimal
20809999
12
Duodecimal
6b769a7
16
Hexadecimal
13d890f
20
Vigesimal
6a14jj
36
Base36
ce13j
md5
4eed5564f05e0a38e7130452e4f34bd9
sha1
28af59f97886643f9626836ba19714cf90501b62
sha256
3c77b1eea4175f98136e6bd9d981be254300473609644ff77a55ba20a0a28a40
sha512
51b48a4e1ec52f9b6a53bbe757d8cba00776776ff1d9f871098036f200106186fab3347fed716f0538e15ecd3053ed3942d2d6c8f01c4f49836392a8ca1e2c96
ripemd-160
3e7d9cd8374f2716062ba5d5e69099ca1f0c8879
Diameter
41619998
Circumference
130753079.95922
Area
1.3604857315992E+15
Volume
3.7748942285457E+22
Surface area
5.4419429263967E+15
Circumference
130753079.95922
Perimeter
83239996
Area
433056058380001
Diagonal
29429782.818771
Surface area
2598336350280006
Volume
9.0118961418318E+21
Space diagonal
36043975.573458
Perimeter
62429997
Area
1.8751877390992E+14
Altitude
18021987.786729
Surface area
1.8751877390992E+14
Volume
1.0620621455397E+21
Height
9809927.6062569