20138285 is an odd 8-digits composite number following 20138284
and preceding 20138286 . In scientific notation, it is written as 2.0138285 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 14966016 positive integers (up to 20138285) that are relatively prime to 20138285.
20138285 has 16 divisors, whose sum is 25920000
The reverse of 20138285 is 58283102
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred thirty-eight thousand two hundred eighty-five
Scientific notation
2.0138285 × 10^7
Engineering notation
2.0138285 × 10^6
Prime Factorization
5 × 17 × 79 × 2999
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20138285
Product of the distinct prime numbers
The prime factorization of 20138285 is 5 × 17 × 79 × 2999.
Since it has a total of 4 prime factors.
2 , 8 , 92 , 96 , 734 , 837 , 8227 , 1210 , 78209 , 16841 , 867534 , 235413 , 1549801 , 9188002 , 85479117 , 73919756 , 706251293 , 960700977 , 5088278529 , 3505351111
n×2
40276570
n×3
60414855
n×4
80553140
n×5
100691425
n÷2
10069142.5
n÷3
6712761.6666667
n÷3
5034571.25
n÷5
4027657
n2
405550522741225
n3
8.1670920088618E+21
n4
1.6447122649568E+29
n5
3.3121684334696E+36
2 √n
4487.5700551635
3 √n
272.06593070879
4 √n
66.989327919927
5 √n
28.893788971537
1 , 5 , 17 , 79 , 85 , 395 , 1343 , 2999 , 6715 , 14995 , 50983 , 236921 , 254915 , 1184605 , 4027657 , 20138285
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138284
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138285 can be divided by 16 positive divisors.
The sum of these divisors (counting 20138285) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100100100101101
3
Ternary
1101220010112102
4
Quaternary
1030310210231
5
Quinary
20123411120
6
Senary
1555344445
8
Octal
114644455
10
Decimal
20138285
12
Duodecimal
68b2125
16
Hexadecimal
133492d
20
Vigesimal
65h5e5
36
Base36
bzmst
md5
4953ef453ed2f6c410df871ef1b6b671
sha1
88f32f24c5cc37b686455f0e6aac184afd2c4f4f
sha256
3c9ed859a79e0a319a12c75cbe53d6386c5291e06006332a80119ea0740d5463
sha512
b097d8e5d2f0c42f9a04b7884167f39b77e218a8df20699984f5a8f5b12ed47df313890a780bd89d468b10fd7ea056ad3b7cb370044db519412d970301679628
ripemd-160
008c278a2a7df53334356f5062052ead88f52251
Diameter
40276570
Circumference
126532576.4238
Area
1.2740745429033E+15
Volume
3.4210235008309E+22
Surface area
5.0962981716133E+15
Circumference
126532576.4238
Perimeter
80553140
Area
405550522741225
Diagonal
28479835.769935
Surface area
2433303136447350
Volume
8.1670920088618E+21
Space diagonal
34880532.797302
Perimeter
60414855
Area
1.7560852760598E+14
Altitude
17440266.398651
Surface area
1.7560852760598E+14
Volume
9.6250102367344E+20
Height
9493278.5899782