20197945 is an odd 8-digits composite number following 20197944
and preceding 20197946 . In scientific notation, it is written as 2.0197945 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 16158352 positive integers (up to 20197945) that are relatively prime to 20197945.
20197945 has 4 divisors, whose sum is 24237540
The reverse of 20197945 is 54979102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million one hundred ninety-seven thousand nine hundred forty-five
Scientific notation
2.0197945 × 10^7
Engineering notation
2.0197945 × 10^6
Prime Factorization
5 × 4039589
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20197945
Product of the distinct prime numbers
The prime factorization of 20197945 is 5 × 4039589.
Since it has a total of 2 prime factors.
3 , 6 , 71 , 35 , 27 , 528 , 5028 , 6709 , 11549 , 22731 , 770109 , 196345 , 4588699 , 6009754 , 55405759 , 84078362 , 305827152 , 155368158 , 3180864960 , 4375688689
n×2
40395890
n×3
60593835
n×4
80791780
n×5
100989725
n÷2
10098972.5
n÷3
6732648.3333333
n÷3
5049486.25
n÷5
4039589
n2
407956982223025
n3
8.2398926893066E+21
n4
1.6642889934452E+29
n5
3.3615217553711E+36
2 √n
4494.2123892847
3 √n
272.33433243061
4 √n
67.03888714235
5 √n
28.910888385465
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
-20197944
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 20197945 can be divided by 4 positive divisors.
The sum of these divisors (counting 20197945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000011001000111001
3
Ternary
1102000011101001
4
Quaternary
1031003020321
5
Quinary
20132313240
6
Senary
2000525001
8
Octal
115031071
10
Decimal
20197945
12
Duodecimal
6920761
16
Hexadecimal
1343239
20
Vigesimal
664eh5
36
Base36
c0wu1
md5
073b81d784e89733d56e7922ca617407
sha1
5afbb10b6e927e4510b6091d4f502b704896cfaa
sha256
121a6448069637d80981e1bdfdc6c65e7b60c2b63155f00f4489914ec4152120
sha512
06b57e9a3e7998a84156f2a6dd9cc981e06376b113afd3aeef0165f4bb235df3d7e9524d0efcc251166c0a840b24795f6e48c4d7cc8ae8f9254d979db2e60b11
ripemd-160
4350435bd18e8b23b8a1a7bd127d072a20e8ee60
Diameter
40395890
Circumference
126907431.25922
Area
1.2816346583325E+15
Volume
3.4515181785459E+22
Surface area
5.1265386333301E+15
Circumference
126907431.25922
Perimeter
80791780
Area
407956982223025
Diagonal
28564207.751066
Surface area
2447741893338150
Volume
8.2398926893066E+21
Space diagonal
34983866.948482
Perimeter
60593835
Area
1.7665055512819E+14
Altitude
17491933.474241
Surface area
1.7665055512819E+14
Volume
9.7108066614303E+20
Height
9521402.5836886