20138209 is an odd 8-digits composite number following 20138208
and preceding 20138210 . In scientific notation, it is written as 2.0138209 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 15357888 positive integers (up to 20138209) that are relatively prime to 20138209.
20138209 has 16 divisors, whose sum is 24893568
The reverse of 20138209 is 90283102
Previous prime number is 377
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred thirty-eight thousand two hundred nine
Scientific notation
2.0138209 × 10^7
Engineering notation
2.0138209 × 10^6
Prime Factorization
7 × 13 × 377 × 587
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20138209
Product of the distinct prime numbers
The prime factorization of 20138209 is 7 × 13 × 377 × 587.
Since it has a total of 4 prime factors.
3 , 5 , 4 , 12 , 826 , 547 , 2956 , 8926 , 67889 , 10177 , 478543 , 653219 , 7183267 , 9628552 , 5312846 , 60732928 , 684272793 , 466284693 , 788327203 , 7394036408
n×2
40276418
n×3
60414627
n×4
80552836
n×5
100691045
n÷2
10069104.5
n÷3
6712736.3333333
n÷3
5034552.25
n÷5
4027641.8
n2
405547461727681
n3
8.1669995436915E+21
n4
1.6446874371376E+29
n5
3.3121059348752E+36
2 √n
4487.5615873211
3 √n
272.06558845792
4 √n
66.989264716976
5 √n
28.893767163014
1 , 7 , 13 , 91 , 377 , 587 , 2639 , 4109 , 4901 , 7631 , 34307 , 53417 , 221299 , 1549093 , 2876887 , 20138209
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
-20138208
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 20138209 can be divided by 16 positive divisors.
The sum of these divisors (counting 20138209) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100100011100001
3
Ternary
1101220010102121
4
Quaternary
1030310203201
5
Quinary
20123410314
6
Senary
1555344241
8
Octal
114644341
10
Decimal
20138209
12
Duodecimal
68b2081
16
Hexadecimal
13348e1
20
Vigesimal
65h5a9
36
Base36
bzmqp
md5
3e7df6a8cb22a97e26459b6fc9278605
sha1
72efd01411d1aa558e41e9f9336fb249827e1c06
sha256
fcdc1c1569e642af67a0e66474e7192353c4a950212fddccbb30044cb79ecc64
sha512
6d6386380d4ca7dbb9e34bda2d816f0741bdd28e4a723d0a844b9b3a6846538cf49b21cae6033fed12be97ca5fefa71bcb8afc23f79634579d070e634c7adb84
ripemd-160
fad37610471fe06a140f18ee0c8432bcc159e6e6
Diameter
40276418
Circumference
126532098.90171
Area
1.2740649264457E+15
Volume
3.420984769111E+22
Surface area
5.0962597057827E+15
Circumference
126532098.90171
Perimeter
80552836
Area
405547461727681
Diagonal
28479728.289704
Surface area
2433284770366086
Volume
8.1669995436915E+21
Space diagonal
34880401.161441
Perimeter
60414627
Area
1.7560720214823E+14
Altitude
17440200.58072
Surface area
1.7560720214823E+14
Volume
9.6249012654862E+20
Height
9493242.7632346