20778889 is an odd 8-digits composite number following 20778888
and preceding 20778890 . In scientific notation, it is written as 2.0778889 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 20740356 positive integers (up to 20778889) that are relatively prime to 20778889.
20778889 has 4 divisors, whose sum is 20817424
The reverse of 20778889 is 98887702
Previous prime number is 547
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty million seven hundred seventy-eight thousand eight hundred eighty-nine
Scientific notation
2.0778889 × 10^7
Engineering notation
2.0778889 × 10^6
Prime Factorization
547 × 37987
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20778889
Product of the distinct prime numbers
The prime factorization of 20778889 is 547 × 37987.
Since it has a total of 2 prime factors.
3 , 5 , 100 , 61 , 510 , 987 , 769 , 4279 , 26803 , 16048 , 367510 , 24361 , 8503131 , 451375 , 50947983 , 79521254 , 318740536 , 180373748 , 2778948377 , 4294359503
n×2
41557778
n×3
62336667
n×4
83115556
n×5
103894445
n÷2
10389444.5
n÷3
6926296.3333333
n÷3
5194722.25
n÷5
4155777.8
n2
431762228074321
n3
8.971539411549E+21
n4
1.864186215917E+29
n5
3.873571845587E+36
2 √n
4558.3866663547
3 √n
274.92069999998
4 √n
67.51582530307
5 √n
29.075317415324
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20778888
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20778889 can be divided by 4 positive divisors.
The sum of these divisors (counting 20778889) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010000111110001001
3
Ternary
1110002200021111
4
Quaternary
1033100332021
5
Quinary
20304411024
6
Senary
2021210321
8
Octal
117207611
10
Decimal
20778889
12
Duodecimal
6b609a1
16
Hexadecimal
13d0f89
20
Vigesimal
69h749
36
Base36
cdd3d
md5
16d016deffa54991d10b6be64bc31d44
sha1
1d16fca4a10b396af8f2fd5277b902cfc861b5c3
sha256
50b7ae174c17b0f0aa3da2ed9aa564a48055dc9c93adc247bb5677f0b62d3428
sha512
61a252c5d14bffdc1d419311de214a09a092852241e8049cf334a168d0598e405d2232ded0ba3a4cf3ca086e5dec9ddd4b557212f48fceda3885cd2db6f698cb
ripemd-160
6567dfcf7ddf1e95d2cbff167e86f06dbd1ae944
Diameter
41557778
Circumference
130557610.06432
Area
1.3564210438158E+15
Volume
3.7579896408952E+22
Surface area
5.4256841752634E+15
Circumference
130557610.06432
Perimeter
83115556
Area
431762228074321
Diagonal
29385786.634845
Surface area
2590573368445926
Volume
8.971539411549E+21
Space diagonal
35990091.472834
Perimeter
62336667
Area
1.8695852895347E+14
Altitude
17995045.736417
Surface area
1.8695852895347E+14
Volume
1.0573060592648E+21
Height
9795262.211615