20145249 is an odd 8-digits composite number following 20145248
and preceding 20145250 . In scientific notation, it is written as 2.0145249 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13430160 positive integers (up to 20145249) that are relatively prime to 20145249.
20145249 has 4 divisors, whose sum is 22383620
The reverse of 20145249 is 94254102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred forty-five thousand two hundred forty-nine
Scientific notation
2.0145249 × 10^7
Engineering notation
2.0145249 × 10^6
Prime Factorization
9 × 2238361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145249
Product of the distinct prime numbers
The prime factorization of 20145249 is 9 × 2238361.
Since it has a total of 2 prime factors.
5 , 10 , 39 , 42 , 861 , 618 , 8188 , 320 , 30186 , 90092 , 894356 , 929296 , 8582163 , 3347134 , 96410300 , 16387165 , 126427634 , 172480541 , 5300017110 , 7607311455
n×2
40290498
n×3
60435747
n×4
80580996
n×5
100726245
n÷2
10072624.5
n÷3
6715083
n÷3
5036312.25
n÷5
4029049.8
n2
405831057272001
n3
8.1755677006777E+21
n4
1.6469884704651E+29
n5
3.3178992837649E+36
2 √n
4488.3459091296
3 √n
272.09728804277
4 √n
66.995118547022
5 √n
28.895787041573
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
-20145248
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 20145249 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145249) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110010001100001
3
Ternary
1101220111002100
4
Quaternary
1030312101201
5
Quinary
20124121444
6
Senary
1555441013
8
Octal
114662141
10
Decimal
20145249
12
Duodecimal
68b6169
16
Hexadecimal
1336461
20
Vigesimal
65i329
36
Base36
bzs69
md5
f7a6031daffd03bf51a8df9347e82d96
sha1
807e1964a71609a7562e0d6afcbd98e846db9aa2
sha256
9758ced0eb5e84c48d23e3c032f296a2392d3265970e94693bbbd51aa5cd8611
sha512
608c813913d6fa574e627a2d78974bf1f83b7e4912eaae46aefcdf2bdf5b8f7688db9d6270117f1c16155335afb3e18b09142840dc70e9442ca1e5f3ce34705e
ripemd-160
3ea1cf8353214409807fece060172ba1c3c9a199
Diameter
40290498
Circumference
126576332.52627
Area
1.2749558681243E+15
Volume
3.4245737903167E+22
Surface area
5.0998234724972E+15
Circumference
126576332.52627
Perimeter
80580996
Area
405831057272001
Diagonal
28489684.353183
Surface area
2434986343632006
Volume
8.1755677006777E+21
Space diagonal
34892594.799126
Perimeter
60435747
Area
1.7573000262113E+14
Altitude
17446297.399563
Surface area
1.7573000262113E+14
Volume
9.6349989353315E+20
Height
9496561.451061