20172145 is an odd 8-digits composite number following 20172144
and preceding 20172146 . In scientific notation, it is written as 2.0172145 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 13740480 positive integers (up to 20172145) that are relatively prime to 20172145.
20172145 has 16 divisors, whose sum is 27848448
The reverse of 20172145 is 54127102
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred seventy-two thousand one hundred forty-five
Scientific notation
2.0172145 × 10^7
Engineering notation
2.0172145 × 10^6
Prime Factorization
5 × 7 × 157 × 3671
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20172145
Product of the distinct prime numbers
The prime factorization of 20172145 is 5 × 7 × 157 × 3671.
Since it has a total of 4 prime factors.
8 , 1 , 46 , 1 , 279 , 874 , 7237 , 9235 , 56372 , 49658 , 445199 , 708828 , 252670 , 4200919 , 17522850 , 96970437 , 741807567 , 669363761 , 4056967565 , 1604592866
n×2
40344290
n×3
60516435
n×4
80688580
n×5
100860725
n÷2
10086072.5
n÷3
6724048.3333333
n÷3
5043036.25
n÷5
4034429
n2
406915433901025
n3
8.2083571353894E+21
n4
1.6558017034686E+29
n5
3.3401072053615E+36
2 √n
4491.3411137432
3 √n
272.21832690679
4 √n
67.017468720798
5 √n
28.903498699776
1 , 5 , 7 , 35 , 157 , 785 , 1099 , 3671 , 5495 , 18355 , 25697 , 128485 , 576347 , 2881735 , 4034429 , 20172145
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
-20172144
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 20172145 can be divided by 16 positive divisors.
The sum of these divisors (counting 20172145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111100110101110001
3
Ternary
1101221211222111
4
Quaternary
1030330311301
5
Quinary
20131002040
6
Senary
2000205321
8
Octal
114746561
10
Decimal
20172145
12
Duodecimal
6909841
16
Hexadecimal
133cd71
20
Vigesimal
661a75
36
Base36
c0cxd
md5
98034881b072eca1d4867147713cc842
sha1
ba40ab1a9720c38d97931527cc946e89eef60d19
sha256
4f044324dd1737fd18db9650a0ed2a6d55428089199102c6cfabb71171a8b62f
sha512
5afdcb9e034d652700a834228a8817f73381abc28dcce767f5a129241967e43054017bd4c156234fb696bafa2b0099bde279d4f4da9f22629eb87e8f148f5a1f
ripemd-160
f552426bfa37cf87cea21b5e23fc41e04c96e1d0
Diameter
40344290
Circumference
126745325.0783
Area
1.2783625377758E+15
Volume
3.4383085966108E+22
Surface area
5.1134501511031E+15
Circumference
126745325.0783
Perimeter
80688580
Area
406915433901025
Diagonal
28527721.041157
Surface area
2441492603406150
Volume
8.2083571353894E+21
Space diagonal
34939180.037646
Perimeter
60516435
Area
1.7619955147513E+14
Altitude
17469590.018823
Surface area
1.7619955147513E+14
Volume
9.6736416547247E+20
Height
9509240.3470522