20578021 is an odd 8-digits prime number following 20578020
and preceding 20578022 . In scientific notation, it is written as 2.0578021 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 20578020 positive integers (up to 20578021) that are relatively prime to 20578021.
20578021 has 2 divisors, whose sum is 20578022
The reverse of 20578021 is 12087502
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million five hundred seventy-eight thousand twenty-one
Scientific notation
2.0578021 × 10^7
Engineering notation
2.0578021 × 10^6
Prime Factorization
20578021
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20578021
Product of the distinct prime numbers
The prime factorization of 20578021 is 20578021.
Since it has a total of 1 prime factors.
10 , 5 , 39 , 64 , 724 , 313 , 8323 , 5421 , 57611 , 72320 , 628446 , 450125 , 8265973 , 3468205 , 68720347 , 45783571 , 730633031 , 899445708 , 5865642786 , 3947649502
n×2
41156042
n×3
61734063
n×4
82312084
n×5
102890105
n÷2
10289010.5
n÷3
6859340.3333333
n÷3
5144505.25
n÷5
4115604.2
n2
423454948276441
n3
8.7138648181865E+21
n4
1.793140932198E+29
n5
3.6899291758731E+36
2 √n
4536.3003648348
3 √n
274.03195056049
4 √n
67.352062810539
5 √n
29.0188849868
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20578022
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10289011
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4536.3004750567
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999028089
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20578021 can be divided by 2 positive divisors.
The sum of these divisors (counting 20578021) is 20578022, the average is 10289011.
Base
System
Value
2
Binary
1001110011111111011100101
3
Ternary
1102201110201221
4
Quaternary
1032133323211
5
Quinary
20231444041
6
Senary
2013020341
8
Octal
116377345
10
Decimal
20578021
12
Duodecimal
6a846b1
16
Hexadecimal
139fee5
20
Vigesimal
68c511
36
Base36
c923p
md5
6e4b3d4e855c57631b54d19dc84907c2
sha1
f455443d7ac62cf251f293db6106a2fd2ad58a48
sha256
6914dc97f7075efafbb79e5f8db744a1f633d9140516d6928570b88225a9d905
sha512
39f0b064a70bd129585367f2d7e02ecae711017dbc039cdb35821d5d86760ebba0bc8e7e06817a512825af93ce017c23cf433300a08c5ef5d3556b8e7f325b6b
ripemd-160
e241999df28dd5b5a150a301ba43ee7772332aa5
Diameter
41156042
Circumference
129295519.19803
Area
1.3303229546315E+15
Volume
3.6500551596252E+22
Surface area
5.3212918185261E+15
Circumference
129295519.19803
Perimeter
82312084
Area
423454948276441
Diagonal
29101716.384998
Surface area
2540729689658646
Volume
8.7138648181865E+21
Space diagonal
35642177.891219
Perimeter
61734063
Area
1.8336137128281E+14
Altitude
17821088.94561
Surface area
1.8336137128281E+14
Volume
1.0269388172138E+21
Height
9700572.1283328