20888889 is an odd 8-digits composite number following 20888888
and preceding 20888890 . In scientific notation, it is written as 2.0888889 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 11936496 positive integers (up to 20888889) that are relatively prime to 20888889.
20888889 has 8 divisors, whose sum is 31830720
The reverse of 20888889 is 98888802
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty million eight hundred eighty-eight thousand eight hundred eighty-nine
Scientific notation
2.0888889 × 10^7
Engineering notation
2.0888889 × 10^6
Prime Factorization
3 × 7 × 994709
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20888889
Product of the distinct prime numbers
The prime factorization of 20888889 is 3 × 7 × 994709.
Since it has a total of 3 prime factors.
2 , 1 , 37 , 65 , 433 , 693 , 9463 , 1212 , 20309 , 69277 , 681600 , 357359 , 8239364 , 1878382 , 4072966 , 25948273 , 403013901 , 706312911 , 5266978997 , 1649444756
n×2
41777778
n×3
62666667
n×4
83555556
n×5
104444445
n÷2
10444444.5
n÷3
6962963
n÷3
5222222.25
n÷5
4177777.8
n2
436345683654321
n3
9.1147765514842E+21
n4
1.9039755564376E+29
n5
3.9771934057138E+36
2 √n
4570.4364124228
3 √n
275.40497467715
4 √n
67.605002865341
5 √n
29.106036419321
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
-20888888
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 20888889 can be divided by 8 positive divisors.
The sum of these divisors (counting 20888889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111101011110100111001
3
Ternary
1110022021011120
4
Quaternary
1033223310321
5
Quinary
20321421024
6
Senary
2023415453
8
Octal
117536471
10
Decimal
20888889
12
Duodecimal
6bb4589
16
Hexadecimal
13ebd39
20
Vigesimal
6ab249
36
Base36
cfpyx
md5
ba0033ce69c0b440aee41b0145454832
sha1
363546f39095cd5ef8f7a49ed636069065240136
sha256
ac23d8acc4dbac7c1ea062dabc500d2d823df77995fc1c519e6bf4924084b59d
sha512
3dd45c4bc707a1fa4956fee6cf08c07001590671e5fcab5cc5b79b14fe3ff7647ee49d1234b9f5855f00be331ea8c6450124e3c69ffba2faf6aeac0c03753761
ripemd-160
f9ba816c5a2a38fa404a18790952ed7945fa9972
Diameter
41777778
Circumference
131248760.44811
Area
1.370820394194E+15
Volume
3.8179886737674E+22
Surface area
5.4832815767761E+15
Circumference
131248760.44811
Perimeter
83555556
Area
436345683654321
Diagonal
29541350.126706
Surface area
2618074101925926
Volume
9.1147765514842E+21
Space diagonal
36180617.061667
Perimeter
62666667
Area
1.8894322343817E+14
Altitude
18090308.530833
Surface area
1.8894322343817E+14
Volume
1.0741867180924E+21
Height
9847116.7089021