20809959 is an odd 8-digits composite number following 20809958
and preceding 20809960 . In scientific notation, it is written as 2.0809959 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 12718080 positive integers (up to 20809959) that are relatively prime to 20809959.
20809959 has 16 divisors, whose sum is 30151680
The reverse of 20809959 is 95990802
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million eight hundred nine thousand nine hundred fifty-nine
Scientific notation
2.0809959 × 10^7
Engineering notation
2.0809959 × 10^6
Prime Factorization
3 × 31 × 19 × 11777
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20809959
Product of the distinct prime numbers
The prime factorization of 20809959 is 3 × 31 × 19 × 11777.
Since it has a total of 4 prime factors.
5 , 10 , 52 , 86 , 611 , 274 , 7390 , 1732 , 95464 , 63780 , 54638 , 582008 , 2254283 , 1610000 , 91976317 , 35958067 , 674756669 , 240622694 , 6192890741 , 7037609817
n×2
41619918
n×3
62429877
n×4
83239836
n×5
104049795
n÷2
10404979.5
n÷3
6936653
n÷3
5202489.75
n÷5
4161991.8
n2
433054393581681
n3
9.0118441752046E+21
n4
1.875361078004E+29
n5
3.9026187143459E+36
2 √n
4561.7933973384
3 √n
275.0576584335
4 √n
67.541049720436
5 √n
29.084007295561
1 , 3 , 19 , 31 , 57 , 93 , 589 , 1767 , 11777 , 35331 , 223763 , 365087 , 671289 , 1095261 , 6936653 , 20809959
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
-20809958
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 20809959 can be divided by 16 positive divisors.
The sum of these divisors (counting 20809959) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000100011100111
3
Ternary
1110011020220020
4
Quaternary
1033120203213
5
Quinary
20311404314
6
Senary
2022010223
8
Octal
117304347
10
Decimal
20809959
12
Duodecimal
6b76973
16
Hexadecimal
13d88e7
20
Vigesimal
6a14hj
36
Base36
ce12f
md5
dfbdd2d67751a1785ee597c10b82f2ae
sha1
858f8ba3fd2f1df8ba340922cdb380fef68d3123
sha256
52044601d78b3fa5194ac98dae749a068d04e27a62d38ad1458cca271baa040c
sha512
6fa95942124f4eb4b75f5d60ffb8cdf4342a89614192c264ac4c443a996d6fe7da83257b1436299ce9b8eef5ae1019c916b716f20170cafff5213563a07ad0c8
ripemd-160
025458295c7a8401a01e5ea8970bfdace6188d65
Diameter
41619918
Circumference
130752828.63181
Area
1.360480501481E+15
Volume
3.7748724608159E+22
Surface area
5.441922005924E+15
Circumference
130752828.63181
Perimeter
83239836
Area
433054393581681
Diagonal
29429726.250228
Surface area
2598326361490086
Volume
9.0118441752046E+21
Space diagonal
36043906.291425
Perimeter
62429877
Area
1.875180530311E+14
Altitude
18021953.145713
Surface area
1.875180530311E+14
Volume
1.0620560212139E+21
Height
9809908.750076