20168821 is an odd 8-digits prime number following 20168820
and preceding 20168822 . In scientific notation, it is written as 2.0168821 × 10^7.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 20168820 positive integers (up to 20168821) that are relatively prime to 20168821.
20168821 has 2 divisors, whose sum is 20168822
The reverse of 20168821 is 12886102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred sixty-eight thousand eight hundred twenty-one
Scientific notation
2.0168821 × 10^7
Engineering notation
2.0168821 × 10^6
Prime Factorization
20168821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20168821
Product of the distinct prime numbers
The prime factorization of 20168821 is 20168821.
Since it has a total of 1 prime factors.
4 , 6 , 44 , 97 , 389 , 498 , 5481 , 926 , 19225 , 43371 , 19201 , 350169 , 8723826 , 1652843 , 43261739 , 68888473 , 638950889 , 93966977 , 5426567871 , 2933931954
n×2
40337642
n×3
60506463
n×4
80675284
n×5
100844105
n÷2
10084410.5
n÷3
6722940.3333333
n÷3
5042205.25
n÷5
4033764.2
n2
406781340530041
n3
8.2043000432904E+21
n4
1.6547105900342E+29
n5
3.3373561697204E+36
2 √n
4490.9710531243
3 √n
272.20337388743
4 √n
67.014707737364
5 √n
28.902546083553
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20168822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10084411
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4490.9711644588
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999900837
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20168821 can be divided by 2 positive divisors.
The sum of these divisors (counting 20168821) is 20168822, the average is 10084411.
Base
System
Value
2
Binary
1001100111100000001110101
3
Ternary
1101221200102101
4
Quaternary
1030330001311
5
Quinary
20130400241
6
Senary
2000142101
8
Octal
114740165
10
Decimal
20168821
12
Duodecimal
6907931
16
Hexadecimal
133c075
20
Vigesimal
661211
36
Base36
c0ad1
md5
b4db64f315c4aa8b87b4848486e18759
sha1
18f4e2f08a9653640ac79c958b4ec7fc0d67a9d4
sha256
ab2ffb36c5ff0b8870e7f603c2145039ddba784d480ed8362aa17104ac06961a
sha512
c5a900093eb5878733a433780c1332c85e4c84f17103ad7ebd8f6159c69f04f0a595fe98cb9284a35bc156a47ff75c42a379518f2bed1a45b2d1347f4dabe1fe
ripemd-160
1f35acde438e419394db2b12d130ec9ac5fcc54e
Diameter
40337642
Circumference
126724439.77034
Area
1.2779412710266E+15
Volume
3.4366091658464E+22
Surface area
5.1117650841063E+15
Circumference
126724439.77034
Perimeter
80675284
Area
406781340530041
Diagonal
28523020.195275
Surface area
2440688043180246
Volume
8.2043000432904E+21
Space diagonal
34933422.700762
Perimeter
60506463
Area
1.7614148734225E+14
Altitude
17466711.350381
Surface area
1.7614148734225E+14
Volume
9.6688603258329E+20
Height
9507673.3984251