20136821 is an odd 8-digits composite number following 20136820
and preceding 20136822 . In scientific notation, it is written as 2.0136821 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 19647520 positive integers (up to 20136821) that are relatively prime to 20136821.
20136821 has 8 divisors, whose sum is 20628864
The reverse of 20136821 is 12863102
Previous prime number is 761
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred thirty-six thousand eight hundred twenty-one
Scientific notation
2.0136821 × 10^7
Engineering notation
2.0136821 × 10^6
Prime Factorization
47 × 761 × 563
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20136821
Product of the distinct prime numbers
The prime factorization of 20136821 is 47 × 761 × 563.
Since it has a total of 3 prime factors.
6 , 5 , 79 , 41 , 204 , 755 , 260 , 8589 , 11698 , 39485 , 158044 , 708525 , 1773571 , 2733973 , 35921687 , 20481760 , 195711393 , 66840305 , 7417438572 , 7369832133
n×2
40273642
n×3
60410463
n×4
80547284
n×5
100684105
n÷2
10068410.5
n÷3
6712273.6666667
n÷3
5034205.25
n÷5
4027364.2
n2
405491559986041
n3
8.1653109604497E+21
n4
1.6442340521991E+29
n5
3.3109646791239E+36
2 √n
4487.4069349681
3 √n
272.05933772475
4 √n
66.988110400041
5 √n
28.893368858929
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20136820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20136821 can be divided by 8 positive divisors.
The sum of these divisors (counting 20136821) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100001101110101
3
Ternary
1101220001112012
4
Quaternary
1030310031311
5
Quinary
20123334241
6
Senary
1555334005
8
Octal
114641565
10
Decimal
20136821
12
Duodecimal
68b1305
16
Hexadecimal
1334375
20
Vigesimal
65h211
36
Base36
bzlo5
md5
d7e689fb0544508675100ebfbaacca7e
sha1
1ea5e7e1093210576f041272a69f0665d84de9fc
sha256
e3ab8f625b5c9a7901d99f3a0fc103bba0ff9f1a4c14b201a3b5f3db7408d98d
sha512
5a9a881d338f54daf940fd67db820304429fd58ff1ee96814b36a025de8e91209f2e8c0c651c3b77fad1a28022c6a91fc8196e3e1b6e726c3158fe3e7b9f8419
ripemd-160
3db6538e365a8ec5378eb92b07e13615434c74cd
Diameter
40273642
Circumference
126523377.84051
Area
1.2738893059448E+15
Volume
3.4202774570167E+22
Surface area
5.0955572237792E+15
Circumference
126523377.84051
Perimeter
80547284
Area
405491559986041
Diagonal
28477765.361279
Surface area
2432949359916246
Volume
8.1653109604497E+21
Space diagonal
34877997.07492
Perimeter
60410463
Area
1.7558299598405E+14
Altitude
17438998.53746
Surface area
1.7558299598405E+14
Volume
9.6229112510513E+20
Height
9492588.4537598