20808889 is an odd 8-digits prime number following 20808888
and preceding 20808890 . In scientific notation, it is written as 2.0808889 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 20808888 positive integers (up to 20808889) that are relatively prime to 20808889.
20808889 has 2 divisors, whose sum is 20808890
The reverse of 20808889 is 98880802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million eight hundred eight thousand eight hundred eighty-nine
Scientific notation
2.0808889 × 10^7
Engineering notation
2.0808889 × 10^6
Prime Factorization
20808889
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20808889
Product of the distinct prime numbers
The prime factorization of 20808889 is 20808889.
Since it has a total of 1 prime factors.
7 , 4 , 22 , 74 , 454 , 846 , 8183 , 5721 , 58872 , 93946 , 418829 , 168825 , 3001792 , 100821 , 37666354 , 77371257 , 238337044 , 48777211 , 8129414357 , 9309277888
n×2
41617778
n×3
62426667
n×4
83235556
n×5
104044445
n÷2
10404444.5
n÷3
6936296.3333333
n÷3
5202222.25
n÷5
4161777.8
n2
433009861414321
n3
9.010454142076E+21
n4
1.8749754008205E+29
n5
3.9016154993404E+36
2 √n
4561.6761173937
3 √n
275.05294407632
4 √n
67.540181502523
5 √n
29.083708202921
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20808890
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10404445
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4561.6762270025
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999038872
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20808889 can be divided by 2 positive divisors.
The sum of these divisors (counting 20808889) is 20808890, the average is 10404445.
Base
System
Value
2
Binary
1001111011000010010111001
3
Ternary
1110011012102121
4
Quaternary
1033120102321
5
Quinary
20311341024
6
Senary
2022001241
8
Octal
117302271
10
Decimal
20808889
12
Duodecimal
6b76221
16
Hexadecimal
13d84b9
20
Vigesimal
6a1249
36
Base36
ce08p
md5
48970c1ee8c1328db9360b0881a39aa7
sha1
97be83a0f5aaebdfe43de215633ebc9322dac880
sha256
e768297755c95ef2af19b1abbb716aaca60c99afce92b322447b003c588de599
sha512
8b93136b840542884c575c6f517492af78b1a052f5e8034fc9b8657ab92ab7e4d127f95da8eb5ef9de4ac1dc401ba63c027ce5e17923495bd14489421b863c25
ripemd-160
435f962056cf66a72b9bc97af044c9f4eb12cbff
Diameter
41617778
Circumference
130746105.62353
Area
1.3603405995512E+15
Volume
3.7742902051005E+22
Surface area
5.4413623982047E+15
Circumference
130746105.62353
Perimeter
83235556
Area
433009861414321
Diagonal
29428213.041716
Surface area
2598059168485926
Volume
9.010454142076E+21
Space diagonal
36042052.997061
Perimeter
62426667
Area
1.8749877003699E+14
Altitude
18021026.498531
Surface area
1.8749877003699E+14
Volume
1.0618922042387E+21
Height
9809404.3472388