20185621 is an odd 8-digits prime number following 20185620
and preceding 20185622 . In scientific notation, it is written as 2.0185621 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20185620 positive integers (up to 20185621) that are relatively prime to 20185621.
20185621 has 2 divisors, whose sum is 20185622
The reverse of 20185621 is 12658102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred eighty-five thousand six hundred twenty-one
Scientific notation
2.0185621 × 10^7
Engineering notation
2.0185621 × 10^6
Prime Factorization
20185621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20185621
Product of the distinct prime numbers
The prime factorization of 20185621 is 20185621.
Since it has a total of 1 prime factors.
7 , 2 , 100 , 44 , 13 , 254 , 5595 , 1474 , 78251 , 40655 , 104906 , 621792 , 7896269 , 3104180 , 92672246 , 58500558 , 467514350 , 147804426 , 9760175756 , 839965491
n×2
40371242
n×3
60556863
n×4
80742484
n×5
100928105
n÷2
10092810.5
n÷3
6728540.3333333
n÷3
5046405.25
n÷5
4037124.2
n2
407459295155641
n3
8.2248189049389E+21
n4
1.6602307720873E+29
n5
3.3512789137892E+36
2 √n
4492.8410833236
3 √n
272.27893189091
4 √n
67.028658671672
5 √n
28.907359464281
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20185622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10092811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4492.8411946117
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999009196
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20185621 can be divided by 2 positive divisors.
The sum of these divisors (counting 20185621) is 20185622, the average is 10092811.
Base
System
Value
2
Binary
1001101000000001000010101
3
Ternary
1101222112110121
4
Quaternary
1031000020111
5
Quinary
20131414441
6
Senary
2000351541
8
Octal
115001025
10
Decimal
20185621
12
Duodecimal
69155b1
16
Hexadecimal
1340215
20
Vigesimal
663411
36
Base36
c0nbp
md5
edbf8d96c6b9c1516315a3b027fc21f1
sha1
2036714aaaf7852b2358b203229786d75471e226
sha256
060ae41053409b045b0048d9d092144375cabfada3d5f45fb38b90d308da632d
sha512
e8f777327addb07575479d7182dc5962fb4855c716b7a1bdadbafa7f5013a6997241320dbc6d2ea11eed36e5347643b2234e8c2f6f5fad72d26039204b7a677d
ripemd-160
9534ca6cf3a9996ec2669b144cfd2deda30ad61e
Diameter
40371242
Circumference
126829997.2835
Area
1.2800711282978E+15
Volume
3.445204086515E+22
Surface area
5.1202845131913E+15
Circumference
126829997.2835
Perimeter
80742484
Area
407459295155641
Diagonal
28546778.983123
Surface area
2444755770933846
Volume
8.2248189049389E+21
Space diagonal
34962521.154329
Perimeter
60556863
Area
1.7643505030644E+14
Altitude
17481260.577165
Surface area
1.7643505030644E+14
Volume
9.6930420361894E+20
Height
9515592.9943744