20479987 is an odd 8-digits composite number following 20479986
and preceding 20479988 . In scientific notation, it is written as 2.0479987 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 18618160 positive integers (up to 20479987) that are relatively prime to 20479987.
20479987 has 4 divisors, whose sum is 22341816
The reverse of 20479987 is 78997402
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million four hundred seventy-nine thousand nine hundred eighty-seven
Scientific notation
2.0479987 × 10^7
Engineering notation
2.0479987 × 10^6
Prime Factorization
11 × 1861817
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20479987
Product of the distinct prime numbers
The prime factorization of 20479987 is 11 × 1861817.
Since it has a total of 2 prime factors.
10 , 8 , 46 , 61 , 533 , 115 , 6741 , 6220 , 30544 , 65749 , 916369 , 754739 , 4471081 , 3096348 , 24472638 , 13246157 , 112164251 , 21027700 , 438676527 , 7297804053
n×2
40959974
n×3
61439961
n×4
81919948
n×5
102399935
n÷2
10239993.5
n÷3
6826662.3333333
n÷3
5119996.75
n÷5
4095997.4
n2
419429867520169
n3
8.5899182342248E+21
n4
1.7592141376799E+29
n5
3.60286826699E+36
2 √n
4525.481963283
3 √n
273.59609357845
4 √n
67.271702544852
5 √n
28.991182866585
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
-20479986
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 20479987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20479987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000111111111110011
3
Ternary
1102112111021001
4
Quaternary
1032013333303
5
Quinary
20220324422
6
Senary
2010542431
8
Octal
116077763
10
Decimal
20479987
12
Duodecimal
6a37a17
16
Hexadecimal
1387ff3
20
Vigesimal
67jjj7
36
Base36
c6ygj
md5
95b2ed061258ee63db1aba3e6660f811
sha1
54047afdc087e4fcfae512bf4b81ec6b63841d20
sha256
6c60b25916088cf64e29c3377c59d1a3a33c4a46923d81107a0daa4f3fae1cb3
sha512
9961f5289e9944dadf64167e1b4d78d0227d1e4b8dea99702c536e3d9b074a554d10098f205c654183536961966e5016f5779f47a11ffed143a943a0023b5567
ripemd-160
d2dfe79c5004dff54e22bc9a144f06de618088e1
Diameter
40959974
Circumference
128679553.40963
Area
1.3176777904975E+15
Volume
3.5981365359437E+22
Surface area
5.27071116199E+15
Circumference
128679553.40963
Perimeter
81919948
Area
419429867520169
Diagonal
28963075.372625
Surface area
2516579205121014
Volume
8.5899182342248E+21
Space diagonal
35472378.02235
Perimeter
61439961
Area
1.816184601892E+14
Altitude
17736189.011175
Surface area
1.816184601892E+14
Volume
1.0123315722097E+21
Height
9654358.4575416