20115487 is an odd 8-digits composite number following 20115486
and preceding 20115488 . In scientific notation, it is written as 2.0115487 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 17241840 positive integers (up to 20115487) that are relatively prime to 20115487.
20115487 has 4 divisors, whose sum is 22989136
The reverse of 20115487 is 78451102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred fifteen thousand four hundred eighty-seven
Scientific notation
2.0115487 × 10^7
Engineering notation
2.0115487 × 10^6
Prime Factorization
7 × 2873641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20115487
Product of the distinct prime numbers
The prime factorization of 20115487 is 7 × 2873641.
Since it has a total of 2 prime factors.
6 , 8 , 61 , 10 , 588 , 255 , 6301 , 6906 , 28111 , 30075 , 614272 , 634961 , 6191718 , 250518 , 24182201 , 13754293 , 812984354 , 881794986 , 9682067355 , 4072917976
n×2
40230974
n×3
60346461
n×4
80461948
n×5
100577435
n÷2
10057743.5
n÷3
6705162.3333333
n÷3
5028871.75
n÷5
4023097.4
n2
404632817247169
n3
8.1393861751088E+21
n4
1.6372771679338E+29
n5
3.2934627586969E+36
2 √n
4485.0292083776
3 √n
271.96322581702
4 √n
66.970360670804
5 √n
28.887244033956
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
-20115486
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 20115487 can be divided by 4 positive divisors.
The sum of these divisors (counting 20115487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101111000000011111
3
Ternary
1101211222021001
4
Quaternary
1030233000133
5
Quinary
20122143422
6
Senary
1555051131
8
Octal
114570037
10
Decimal
20115487
12
Duodecimal
68a0aa7
16
Hexadecimal
132f01f
20
Vigesimal
65e8e7
36
Base36
bz57j
md5
e97f65631ebb1e8583dd39f00da1d046
sha1
dda657289ecfc272297376e58386d6b21d2bf182
sha256
ce18d850c6185f13cb53328e37edd92f8424f0ec023e4c0ad28aeb836c10448c
sha512
5dbbad82a1136f5778068897b82554d2f76148073b714a6154c21f7427d513d0603d29924b25e220cee903c56b18c1c0fe2b00d6ef5da5552bb29d02f31f63a0
ripemd-160
95f11af23034c9ad448d9e72df5a7352fed4d52b
Diameter
40230974
Circumference
126389332.36516
Area
1.271191486065E+15
Volume
3.409418108327E+22
Surface area
5.0847659442602E+15
Circumference
126389332.36516
Perimeter
80461948
Area
404632817247169
Diagonal
28447594.52914
Surface area
2427796903483014
Volume
8.1393861751088E+21
Space diagonal
34841045.502991
Perimeter
60346461
Area
1.7521114947046E+14
Altitude
17420522.751496
Surface area
1.7521114947046E+14
Volume
9.5923585985258E+20
Height
9482531.5097132