20123821 is an odd 8-digits composite number following 20123820
and preceding 20123822 . In scientific notation, it is written as 2.0123821 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20076700 positive integers (up to 20123821) that are relatively prime to 20123821.
20123821 has 4 divisors, whose sum is 20170944
The reverse of 20123821 is 12832102
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-three thousand eight hundred twenty-one
Scientific notation
2.0123821 × 10^7
Engineering notation
2.0123821 × 10^6
Prime Factorization
431 × 46691
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123821
Product of the distinct prime numbers
The prime factorization of 20123821 is 431 × 46691.
Since it has a total of 2 prime factors.
8 , 4 , 94 , 6 , 123 , 85 , 5391 , 929 , 53031 , 80791 , 103603 , 269184 , 7734572 , 6824579 , 80133621 , 21609341 , 972562194 , 562429890 , 3212300129 , 9178664692
n×2
40247642
n×3
60371463
n×4
80495284
n×5
100619105
n÷2
10061910.5
n÷3
6707940.3333333
n÷3
5030955.25
n÷5
4024764.2
n2
404968171640041
n3
8.1495069967815E+21
n4
1.6399922004148E+29
n5
3.3002909482543E+36
2 √n
4485.9582031044
3 √n
272.00077944557
4 √n
66.977296176424
5 √n
28.889637278569
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20123820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20123821 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001000010101101
3
Ternary
1101212101200201
4
Quaternary
1030301002231
5
Quinary
20122430241
6
Senary
1555153501
8
Octal
114610255
10
Decimal
20123821
12
Duodecimal
68a5891
16
Hexadecimal
13310ad
20
Vigesimal
65f9b1
36
Base36
bzbn1
md5
57985f162869d3703361e72c88226331
sha1
0f014dd6590256f2fa2330d37fc4f846f69fbe0f
sha256
b948672e042efe02546e11f72f610f37675b2422416dfe21d584cb920126f809
sha512
779f0954c8e54477255c7c0d2250151ca176252ea1011a661eb7eda15eaefb07dceac9d1e7e3f1a4e6e2dd0a486698ce26bb2143752bad03ef1a820e19a73fb3
ripemd-160
766f166bb05e0c2bb2002ff92f2b270a91f2d57e
Diameter
40247642
Circumference
126441696.43151
Area
1.272245032962E+15
Volume
3.4136575081956E+22
Surface area
5.0889801318482E+15
Circumference
126441696.43151
Perimeter
80495284
Area
404968171640041
Diagonal
28459380.584969
Surface area
2429809029840246
Volume
8.1495069967815E+21
Space diagonal
34855480.414422
Perimeter
60371463
Area
1.7535636218221E+14
Altitude
17427740.207211
Surface area
1.7535636218221E+14
Volume
9.6042861012523E+20
Height
9486460.1949895