20797980 is an even 8-digits composite number following 20797979
and preceding 20797981 . In scientific notation, it is written as 2.0797980 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors.
There are 4545024 positive integers (up to 20797980) that are relatively prime to 20797980.
20797980 has 24 divisors, whose sum is 38358432
The reverse of 20797980 is 08979702
Previous prime number is 105
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred ninety-seven thousand nine hundred eighty
Scientific notation
2.0797980 × 10^7
Engineering notation
2.0797980 × 10^6
Prime Factorization
2 × 2 × 23 × 105 × 2153
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10398990
Product of the distinct prime numbers
The prime factorization of 20797980 is 2 × 2 × 23 × 105 × 2153.
Since it has a total of 5 prime factors.
7 , 6 , 61 , 66 , 187 , 163 , 1780 , 1541 , 3829 , 13291 , 317587 , 807522 , 3739306 , 1884747 , 84188187 , 27993330 , 413251815 , 757980536 , 1411016533 , 2820049283
n×2
41595960
n×3
62393940
n×4
83191920
n×5
103989900
n÷2
10398990
n÷3
6932660
n÷3
5199495
n÷5
4159596
n2
432555972080400
n3
8.9962904562087E+21
n4
1.8710466898242E+29
n5
3.891399163403E+36
2 √n
4560.4802378697
3 √n
275.00487043716
4 √n
67.53132782546
5 √n
29.080658153245
1 , 2 , 4 , 23 , 46 , 92 , 105 , 210 , 420 , 2153 , 2415 , 4306 , 4830 , 8612 , 9660 , 49519 , 99038 , 198076 , 226065 , 452130 , 904260 , 5199495 , 10398990 , 20797980
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20797979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20797980 can be divided by 24 positive divisors.
The sum of these divisors (counting 20797980) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111010101101000011100
3
Ternary
1110010122110120
4
Quaternary
1033111220130
5
Quinary
20311013410
6
Senary
2021434540
8
Octal
117255034
10
Decimal
20797980
12
Duodecimal
6b6ba50
16
Hexadecimal
13d5a1c
20
Vigesimal
69jej0
36
Base36
cdrto
md5
bd4ae6ba40b8d72823cc5d52ef2d1cd9
sha1
fe73e9d830dd21fd4ee28ac43e1b5dba419e4ff1
sha256
da8227211ee34269a186941b94fcefe00863a960c6944ef30af58c88e9875a5f
sha512
5f873aab976334db56b75ba1ce8a5a5e72b5cd2d6e8f51e2df9981c2d7d1055743f5c1d492d8029ba26729e269bd62faf882e69942f89396646eaab6d9d08559
ripemd-160
b9b6e8aaf707d1f05d817e901fe7b5a1b4c2cfba
Diameter
41595960
Circumference
130677562.35501
Area
1.3589146641542E+15
Volume
3.768357334238E+22
Surface area
5.4356586566167E+15
Circumference
130677562.35501
Perimeter
83191920
Area
432555972080400
Diagonal
29412785.385964
Surface area
2595335832482400
Volume
8.9962904562087E+21
Space diagonal
36023158.054801
Perimeter
62393940
Area
1.8730223019015E+14
Altitude
18011579.027401
Surface area
1.8730223019015E+14
Volume
1.0602229978515E+21
Height
9804261.7953215