20797890 is an even 8-digits composite number following 20797889
and preceding 20797891 . In scientific notation, it is written as 2.0797890 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 5528064 positive integers (up to 20797890) that are relatively prime to 20797890.
20797890 has 16 divisors, whose sum is 33384960
The reverse of 20797890 is 09879702
Previous prime number is 1889
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred ninety-seven thousand eight hundred ninety
Scientific notation
2.0797890 × 10^7
Engineering notation
2.0797890 × 10^6
Prime Factorization
2 × 15 × 1889 × 367
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20797890
Product of the distinct prime numbers
The prime factorization of 20797890 is 2 × 15 × 1889 × 367.
Since it has a total of 4 prime factors.
4 , 1 , 26 , 94 , 701 , 891 , 3885 , 4605 , 19823 , 55459 , 917748 , 923982 , 5659345 , 8595137 , 74473957 , 71152875 , 900520069 , 829125707 , 9417232320 , 7027906301
n×2
41595780
n×3
62393670
n×4
83191560
n×5
103989450
n÷2
10398945
n÷3
6932630
n÷3
5199472.5
n÷5
4159578
n2
432552228452100
n3
8.9961736666016E+21
n4
1.8710143033888E+29
n5
3.8913149670306E+36
2 √n
4560.4703704772
3 √n
275.00447375642
4 √n
67.531254767531
5 √n
29.080632984803
1 , 2 , 15 , 30 , 367 , 734 , 1889 , 3778 , 5505 , 11010 , 28335 , 56670 , 693263 , 1386526 , 10398945 , 20797890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20797889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20797890 can be divided by 16 positive divisors.
The sum of these divisors (counting 20797890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010101100111000010
3
Ternary
1110010122100020
4
Quaternary
1033111213002
5
Quinary
20311013030
6
Senary
2021434310
8
Octal
117254702
10
Decimal
20797890
12
Duodecimal
6b6b996
16
Hexadecimal
13d59c2
20
Vigesimal
69jeea
36
Base36
cdrr6
md5
3e2721aec116f6ffc11b49ac416f3dbf
sha1
daf6bf5d28e07901f69a33981a52c065046facbe
sha256
2a175707768a044197a6a33b51a94b76534ec34a0d840d9783e50ab1819d942c
sha512
b6d0662c040cc895857a70ed6c7401a2d948a620fe47ebbd8cb8a44b0d7dac47f5e25ad2ead00f50f35c0697901b790c3e1b6529e3c8bb601e2235377065b74b
ripemd-160
d9f2201bef136bd7c70712563980d4849704f84b
Diameter
41595780
Circumference
130676996.86834
Area
1.358902903199E+15
Volume
3.7683084135218E+22
Surface area
5.435611612796E+15
Circumference
130676996.86834
Perimeter
83191560
Area
432552228452100
Diagonal
29412658.106744
Surface area
2595313370712600
Volume
8.9961736666016E+21
Space diagonal
36023002.170229
Perimeter
62393670
Area
1.8730060915154E+14
Altitude
18011501.085114
Surface area
1.8730060915154E+14
Volume
1.0602092340643E+21
Height
9804219.3689146