20168921 is an odd 8-digits prime number following 20168920
and preceding 20168922 . In scientific notation, it is written as 2.0168921 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20168920 positive integers (up to 20168921) that are relatively prime to 20168921.
20168921 has 2 divisors, whose sum is 20168922
The reverse of 20168921 is 12986102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred sixty-eight thousand nine hundred twenty-one
Scientific notation
2.0168921 × 10^7
Engineering notation
2.0168921 × 10^6
Prime Factorization
20168921
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20168921
Product of the distinct prime numbers
The prime factorization of 20168921 is 20168921.
Since it has a total of 1 prime factors.
1 , 1 , 89 , 21 , 927 , 47 , 7549 , 3393 , 66185 , 81353 , 820755 , 102031 , 1644360 , 588888 , 11696600 , 18908898 , 401833041 , 56212272 , 666070006 , 360465693
n×2
40337842
n×3
60506763
n×4
80675684
n×5
100844605
n÷2
10084460.5
n÷3
6722973.6666667
n÷3
5042230.25
n÷5
4033784.2
n2
406785374304241
n3
8.2044220782977E+21
n4
1.6547434074784E+29
n5
3.3374389060703E+36
2 √n
4490.9821865601
3 √n
272.20382376156
4 √n
67.014790804419
5 √n
28.902574744116
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20168922
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10084461
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4490.9822978943
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999008375
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20168921 can be divided by 2 positive divisors.
The sum of these divisors (counting 20168921) is 20168922, the average is 10084461.
Base
System
Value
2
Binary
1001100111100000011011001
3
Ternary
1101221200120002
4
Quaternary
1030330003121
5
Quinary
20130401141
6
Senary
2000142345
8
Octal
114740331
10
Decimal
20168921
12
Duodecimal
69079b5
16
Hexadecimal
133c0d9
20
Vigesimal
661261
36
Base36
c0aft
md5
1f15d387b2cc4cb247eaf420216c22a3
sha1
bc523db088d9f2860e741d90345f53c512a0b1d3
sha256
ea20c75e8d0a63c13cbd28c721280d6702c08de7564f4c31bed3ceb8d2ac4b6c
sha512
70989202e9f4307196c07ddeadbe6c5a8a3d87530fcfd831d51fc020fa0ca709c0f096efb708ca6662e7ec57c676f7e25cf014e7ce8cfed368b981db558e607f
ripemd-160
42b598837f7f699c4574c0541bcdb35d4bc6f684
Diameter
40337842
Circumference
126725068.08887
Area
1.277953943502E+15
Volume
3.4366602837506E+22
Surface area
5.1118157740079E+15
Circumference
126725068.08887
Perimeter
80675684
Area
406785374304241
Diagonal
28523161.616632
Surface area
2440712245825446
Volume
8.2044220782977E+21
Space diagonal
34933595.905843
Perimeter
60506763
Area
1.7614323401772E+14
Altitude
17466797.952921
Surface area
1.7614323401772E+14
Volume
9.6690041454682E+20
Height
9507720.5388772