20003987 is an odd 8-digits composite number following 20003986
and preceding 20003988 . In scientific notation, it is written as 2.0003987 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19538736 positive integers (up to 20003987) that are relatively prime to 20003987.
20003987 has 4 divisors, whose sum is 20469240
The reverse of 20003987 is 78930002
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million three thousand nine hundred eighty-seven
Scientific notation
2.0003987 × 10^7
Engineering notation
2.0003987 × 10^6
Prime Factorization
43 × 465209
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20003987
Product of the distinct prime numbers
The prime factorization of 20003987 is 43 × 465209.
Since it has a total of 2 prime factors.
5 , 8 , 62 , 38 , 125 , 919 , 8061 , 1388 , 15386 , 10041 , 410463 , 435432 , 8703811 , 751120 , 52394971 , 29539710 , 180247204 , 573102687 , 5203243403 , 2357659614
n×2
40007974
n×3
60011961
n×4
80015948
n×5
100019935
n÷2
10001993.5
n÷3
6667995.6666667
n÷3
5000996.75
n÷5
4000797.4
n2
400159495896169
n3
8.0047853538335E+21
n4
1.6012762215588E+29
n5
3.2031908719471E+36
2 √n
4472.5816929375
3 √n
271.45979776611
4 √n
66.877363083016
5 √n
28.855148435327
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
-20003986
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 20003987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20003987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010011110010010011
3
Ternary
1101122022022102
4
Quaternary
1030103302103
5
Quinary
20110111422
6
Senary
1552431015
8
Octal
114236223
10
Decimal
20003987
12
Duodecimal
684846b
16
Hexadecimal
1313c93
20
Vigesimal
6509j7
36
Base36
bwr6b
md5
2b3dc86f5ae64c5470edfa41a4b3cbcf
sha1
41221986d48952c61e4b073599621afe1a699199
sha256
b593c214ceb83d5f8236acf2bbc32f281b70d3f014ae01f86cf1ae4a01050d76
sha512
15dc83b863bc778b95683ac23255a8842b16e71739c598a943f67d98e6ef8bdcecf36766062b4455f042af9937c0ddf9d126012e313c4fa955296df94f5b8dac
ripemd-160
0416225be04cf83c2a850716134d3429c0723646
Diameter
40007974
Circumference
125688757.20341
Area
1.2571381325716E+15
Volume
3.3530366481555E+22
Surface area
5.0285525302864E+15
Circumference
125688757.20341
Perimeter
80015948
Area
400159495896169
Diagonal
28289909.716935
Surface area
2400956975377014
Volume
8.0047853538335E+21
Space diagonal
34647921.837947
Perimeter
60011961
Area
1.7327414450583E+14
Altitude
17323960.918974
Surface area
1.7327414450583E+14
Volume
9.4337300093974E+20
Height
9429969.905645