20087 is an odd 5-digits composite number following 20086
and preceding 20088 . In scientific notation, it is written as 2.0087 × 10^4.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 19656 positive integers (up to 20087) that are relatively prime to 20087.
20087 has 4 divisors, whose sum is 20520
The reverse of 20087 is 78002
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 17
Digital Root 8
Name
twenty thousand eighty-seven
Scientific notation
2.0087 × 10^4
Engineering notation
2.0087 × 10^3
Prime Factorization
53 × 379
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20087
Product of the distinct prime numbers
The prime factorization of 20087 is 53 × 379.
Since it has a total of 2 prime factors.
7 , 7 , 47 , 60 , 926 , 442 , 4672 , 104 , 80239 , 74944 , 329478 , 887152 , 8785826 , 9277510 , 56516508 , 17059444 , 505838673 , 34675210 , 8624532263 , 7333743119
n×2
40174
n×3
60261
n×4
80348
n×5
100435
n÷2
10043.5
n÷3
6695.6666666667
n÷3
5021.75
n÷5
4017.4
n2
403487569
n3
8104854798503
n4
162802218337529761
n5
3.270208159746E+21
2 √n
141.728613907
3 √n
27.183478288281
4 √n
11.904982734427
5 √n
7.2540912766857
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
-20086
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 20087 can be divided by 4 positive divisors.
The sum of these divisors (counting 20087) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111001110111
3
Ternary
1000112222
4
Quaternary
10321313
5
Quinary
1120322
6
Senary
232555
8
Octal
47167
10
Decimal
20087
12
Duodecimal
b75b
16
Hexadecimal
4e77
20
Vigesimal
2a47
36
Base36
fhz
md5
ed47c903ad66558cbdb749e44bc89b1b
sha1
ecd1a5bc72fc5f8b7d31b6868191261e703a9d7b
sha256
66c0f8045a13eaa8730644b82abee6a0a149e674a508702d86d9c6c9a5e0aecc
sha512
66fb65ceb2d011159dae617a1efec61ae0abf461e494204eeb22f3ab04ced39640ef3c6041bed23eb159091162aae30c4a661dc165fe5985272c87b675972168
ripemd-160
2d698ad3fbd075606af07cbd2e947afb9ccbdc20
Diameter
40174
Circumference
126210.34326532
Area
1267593582.5852
Volume
33949536391185
Surface area
5070374330.3408
Circumference
126210.34326532
Perimeter
80348
Area
403487569
Diagonal
28407.307827388
Surface area
2420925414
Volume
8104854798503
Space diagonal
34791.704571636
Perimeter
60261
Area
174715242.43261
Altitude
17395.852285818
Surface area
174715242.43261
Volume
955166298092.3
Height
9469.1026091295