20188405 is an odd 8-digits composite number following 20188404
and preceding 20188406 . In scientific notation, it is written as 2.0188405 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 16150720 positive integers (up to 20188405) that are relatively prime to 20188405.
20188405 has 4 divisors, whose sum is 24226092
The reverse of 20188405 is 50488102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred eighty-eight thousand four hundred five
Scientific notation
2.0188405 × 10^7
Engineering notation
2.0188405 × 10^6
Prime Factorization
5 × 4037681
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20188405
Product of the distinct prime numbers
The prime factorization of 20188405 is 5 × 4037681.
Since it has a total of 2 prime factors.
10 , 9 , 66 , 33 , 27 , 354 , 7869 , 673 , 90689 , 10662 , 156853 , 962159 , 7226030 , 6882547 , 84615476 , 92372244 , 644891124 , 408001195 , 7772982351 , 6768658261
n×2
40376810
n×3
60565215
n×4
80753620
n×5
100942025
n÷2
10094202.5
n÷3
6729468.3333333
n÷3
5047101.25
n÷5
4037681
n2
407571696444025
n3
8.228222474349E+21
n4
1.6611468774226E+29
n5
3.3535905925893E+36
2 √n
4493.1508988682
3 √n
272.29144888176
4 √n
67.030969699596
5 √n
28.908156800655
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
-20188404
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 20188405 can be divided by 4 positive divisors.
The sum of these divisors (counting 20188405) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000110011110101
3
Ternary
1101222200021201
4
Quaternary
1031000303311
5
Quinary
20132012110
6
Senary
2000412501
8
Octal
115006365
10
Decimal
20188405
12
Duodecimal
6917131
16
Hexadecimal
1340cf5
20
Vigesimal
663b05
36
Base36
c0ph1
md5
4814d2804c82c8200e2dc269853a6742
sha1
1a03132cf93e296e79fa31c2606a7b4028df1e5e
sha256
46e1d3debc36e0d7993b28cc571e76b430403e675e1ffc7b22a3336f4f01ed77
sha512
2ae4738024f1cca0b4d919e15dcb0a4382dfa45216a681952cf112ead5f299bb6f420b70ec1652b76454890469ec2bdc0fb0d38fdd1e8f380b6bd681bd273fdf
ripemd-160
f111c5aee4abebd74d0cceed3cf7f0696bcce45b
Diameter
40376810
Circumference
126847489.67139
Area
1.2804242473597E+15
Volume
3.4466297703356E+22
Surface area
5.1216969894387E+15
Circumference
126847489.67139
Perimeter
80753620
Area
407571696444025
Diagonal
28550716.153681
Surface area
2445430178664150
Volume
8.228222474349E+21
Space diagonal
34967343.183778
Perimeter
60565215
Area
1.7648372149202E+14
Altitude
17483671.591889
Surface area
1.7648372149202E+14
Volume
9.6970531812063E+20
Height
9516905.3845603