20002987 is an odd 8-digits composite number following 20002986
and preceding 20002988 . In scientific notation, it is written as 2.0002987 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19994040 positive integers (up to 20002987) that are relatively prime to 20002987.
20002987 has 4 divisors, whose sum is 20011936
The reverse of 20002987 is 78920002
Previous prime number is 4357
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million two thousand nine hundred eighty-seven
Scientific notation
2.0002987 × 10^7
Engineering notation
2.0002987 × 10^6
Prime Factorization
4357 × 4591
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20002987
Product of the distinct prime numbers
The prime factorization of 20002987 is 4357 × 4591.
Since it has a total of 2 prime factors.
5 , 7 , 8 , 70 , 849 , 883 , 3543 , 9756 , 63218 , 20554 , 269602 , 307685 , 101422 , 1519937 , 63822434 , 75554420 , 938561082 , 113572550 , 4377750661 , 7828328357
n×2
40005974
n×3
60008961
n×4
80011948
n×5
100014935
n÷2
10001493.5
n÷3
6667662.3333333
n÷3
5000746.75
n÷5
4000597.4
n2
400119488922169
n3
8.0035849353568E+21
n4
1.6009560541534E+29
n5
3.2023903138801E+36
2 √n
4472.4698992838
3 √n
271.45527426251
4 √n
66.876527266926
5 √n
28.854859935585
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
-20002986
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 20002987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20002987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010011100010101011
3
Ternary
1101122020221101
4
Quaternary
1030103202223
5
Quinary
20110043422
6
Senary
1552422231
8
Octal
114234253
10
Decimal
20002987
12
Duodecimal
6847977
16
Hexadecimal
13138ab
20
Vigesimal
650797
36
Base36
bwqej
md5
3fe9e70ba0cc46505095baeb97de0068
sha1
1cf5a5cdf6f2bb2c66bc3a60d1aefebaf1b0a787
sha256
be2f342404f0ea9bccebe5f6b6a02e36a70275a00255ce7ff459dfc9bc1b8335
sha512
6e5c74547d55969db1a136385231216f8fa38d4527f796a4eb3148aa4fd8966595a314cbb9b724a7c51ee68fd9e0590b262ec96a92e4d80ee35ce708f3924e87
ripemd-160
6080e7a02e451e79d942629afaa42fdf4c78eeb8
Diameter
40005974
Circumference
125682474.0181
Area
1.257012446956E+15
Volume
3.3525338180398E+22
Surface area
5.028049787824E+15
Circumference
125682474.0181
Perimeter
80011948
Area
400119488922169
Diagonal
28288495.503373
Surface area
2400716933533014
Volume
8.0035849353568E+21
Space diagonal
34646189.78714
Perimeter
60008961
Area
1.7325682097792E+14
Altitude
17323094.89357
Surface area
1.7325682097792E+14
Volume
9.4323153026555E+20
Height
9429498.5011242