20085987 is an odd 8-digits composite number following 20085986
and preceding 20085988 . In scientific notation, it is written as 2.0085987 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13221000 positive integers (up to 20085987) that are relatively prime to 20085987.
20085987 has 8 divisors, whose sum is 27120640
The reverse of 20085987 is 78958002
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million eighty-five thousand nine hundred eighty-seven
Scientific notation
2.0085987 × 10^7
Engineering notation
2.0085987 × 10^6
Prime Factorization
3 × 79 × 84751
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20085987
Product of the distinct prime numbers
The prime factorization of 20085987 is 3 × 79 × 84751.
Since it has a total of 3 prime factors.
2 , 5 , 13 , 83 , 589 , 524 , 5470 , 7594 , 57147 , 58901 , 762259 , 312883 , 8400095 , 7508838 , 17303936 , 19176211 , 337230647 , 719857857 , 3057115973 , 1672835409
n×2
40171974
n×3
60257961
n×4
80343948
n×5
100429935
n÷2
10042993.5
n÷3
6695329
n÷3
5021496.75
n÷5
4017197.4
n2
403446873764169
n3
8.1036286616177E+21
n4
1.6276937995008E+29
n5
3.2693836496754E+36
2 √n
4481.7392829124
3 √n
271.8302132065
4 √n
66.945793616271
5 √n
28.878766247311
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
-20085986
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 20085987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20085987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100111110011100011
3
Ternary
1101210110210110
4
Quaternary
1030213303203
5
Quinary
20120222422
6
Senary
1554302403
8
Octal
114476343
10
Decimal
20085987
12
Duodecimal
6887a03
16
Hexadecimal
1327ce3
20
Vigesimal
65aej7
36
Base36
byig3
md5
cedfeabf93d79258912e0aa0dea423bd
sha1
493c002205dbe37895f574bd3371cdbd1b7b6653
sha256
04cdeeda3a791054fd8e58a83f47dbfaad5cef69c1f9db2534fe96cd6b517939
sha512
6779569cf2df02197d1ee54ae589eb7b814dc3b95b3e7a7f538f7253471cce8bfc09f1329cc80d7b30079fc8d3230ab4791fdf410f932f8bdf73cba0d803ea00
ripemd-160
1b70e0f0a9067f499c3cbf40595e20809a63eabf
Diameter
40171974
Circumference
126203978.3986
Area
1.2674657347313E+15
Volume
3.3944400361011E+22
Surface area
5.0698629389251E+15
Circumference
126203978.3986
Perimeter
80343948
Area
403446873764169
Diagonal
28405875.22905
Surface area
2420681242585014
Volume
8.1036286616177E+21
Space diagonal
34789950.004168
Perimeter
60257961
Area
1.7469762087859E+14
Altitude
17394975.002084
Surface area
1.7469762087859E+14
Volume
9.550217964746E+20
Height
9468625.0763499