20087985 is an odd 8-digits composite number following 20087984
and preceding 20087986 . In scientific notation, it is written as 2.0087985 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 10713584 positive integers (up to 20087985) that are relatively prime to 20087985.
20087985 has 8 divisors, whose sum is 32140800
The reverse of 20087985 is 58978002
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million eighty-seven thousand nine hundred eighty-five
Scientific notation
2.0087985 × 10^7
Engineering notation
2.0087985 × 10^6
Prime Factorization
3 × 5 × 1339199
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20087985
Product of the distinct prime numbers
The prime factorization of 20087985 is 3 × 5 × 1339199.
Since it has a total of 3 prime factors.
4 , 1 , 27 , 84 , 253 , 355 , 5230 , 8073 , 84873 , 96841 , 319711 , 962093 , 9559039 , 6003301 , 11548330 , 93183381 , 535614394 , 339690352 , 6307577431 , 4620660276
n×2
40175970
n×3
60263955
n×4
80351940
n×5
100439925
n÷2
10043992.5
n÷3
6695995
n÷3
5021996.25
n÷5
4017597
n2
403527141360225
n3
8.1060471627371E+21
n4
1.6283415381435E+29
n5
3.2710100393105E+36
2 √n
4481.962181902
3 √n
271.83922610288
4 √n
66.947458367753
5 √n
28.879340752107
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
-20087984
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 20087985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20087985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101000010010110001
3
Ternary
1101210120112110
4
Quaternary
1030220102301
5
Quinary
20120303420
6
Senary
1554315533
8
Octal
114502261
10
Decimal
20087985
12
Duodecimal
6888ba9
16
Hexadecimal
13284b1
20
Vigesimal
65ajj5
36
Base36
byjzl
md5
b9c0880ba7b67660f5dc7bdd867ce0f8
sha1
e3b8202defa8ca5767996ad3ee8e2ca28e949472
sha256
a3f2ecc1eee13e5b87461e0d596221cf665c7b80a4b7ade7e1bc4a8c884991f8
sha512
079ab10cee7b917fd9ef3e40625755ab786395877c1d886da8b7ba4ff51559e52946364613aa8b74ee2517d5c139d8976a390b79ccf389c7247ebc91fd730903
ripemd-160
784de56dc56fb80aa8e5cee325d7884ff84dba46
Diameter
40175970
Circumference
126216532.20284
Area
1.2677179028214E+15
Volume
3.395453095481E+22
Surface area
5.0708716112855E+15
Circumference
126216532.20284
Perimeter
80351940
Area
403527141360225
Diagonal
28408700.827747
Surface area
2421162848161350
Volume
8.1060471627371E+21
Space diagonal
34793410.641681
Perimeter
60263955
Area
1.7473237776723E+14
Altitude
17396705.320841
Surface area
1.7473237776723E+14
Volume
9.5530681956489E+20
Height
9469566.9425824