20797978 is an even 8-digits composite number following 20797977
and preceding 20797979 . In scientific notation, it is written as 2.0797978 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 10392156 positive integers (up to 20797978) that are relatively prime to 20797978.
20797978 has 8 divisors, whose sum is 31217472
The reverse of 20797978 is 87979702
Previous prime number is 2287
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty million seven hundred ninety-seven thousand nine hundred seventy-eight
Scientific notation
2.0797978 × 10^7
Engineering notation
2.0797978 × 10^6
Prime Factorization
2 × 2287 × 4547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20797978
Product of the distinct prime numbers
The prime factorization of 20797978 is 2 × 2287 × 4547.
Since it has a total of 3 prime factors.
6 , 2 , 7 , 43 , 102 , 66 , 8808 , 1172 , 40512 , 90051 , 783861 , 431464 , 2103110 , 4302270 , 39828082 , 72006162 , 758548625 , 383144149 , 9456677118 , 5208144264
n×2
41595956
n×3
62393934
n×4
83191912
n×5
103989890
n÷2
10398989
n÷3
6932659.3333333
n÷3
5199494.5
n÷5
4159595.6
n2
432555888888484
n3
8.9962878608731E+21
n4
1.8710459701211E+29
n5
3.8913972923567E+36
2 √n
4560.4800185945
3 √n
275.00486162204
4 √n
67.531326201953
5 √n
29.080657593947
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
-20797977
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 20797978 can be divided by 8 positive divisors.
The sum of these divisors (counting 20797978) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010101101000011010
3
Ternary
1110010122110111
4
Quaternary
1033111220122
5
Quinary
20311013403
6
Senary
2021434534
8
Octal
117255032
10
Decimal
20797978
12
Duodecimal
6b6ba4a
16
Hexadecimal
13d5a1a
20
Vigesimal
69jeii
36
Base36
cdrtm
md5
05de17136c34e3296793725aba5a08fb
sha1
8cb71b3a0a4c93a4a48d97f544df3dfa5d7bfef5
sha256
3f7f1a90d48a16944a32ab96aaa38b402422c292f848c2dfa9418e48212ce787
sha512
f56d83e4d03fc22b1ce9fbeaad4d069122dcc6e74b30cbb61cca6b4033e5a05a5d6e608933a11d90bea30d89210bdb4c4afbd9791749e9e61aeaf7d25d5624e3
ripemd-160
cc0595e4bfe4c7f098fb47f0a00d3f2fe7cd3360
Diameter
41595956
Circumference
130677549.78864
Area
1.3589144027991E+15
Volume
3.7683562471064E+22
Surface area
5.4356576111963E+15
Circumference
130677549.78864
Perimeter
83191912
Area
432555888888484
Diagonal
29412782.557537
Surface area
2595335333330904
Volume
8.9962878608731E+21
Space diagonal
36023154.5907
Perimeter
62393934
Area
1.8730219416699E+14
Altitude
18011577.29535
Surface area
1.8730219416699E+14
Volume
1.0602226919883E+21
Height
9804260.8525124