20107821 is an odd 8-digits composite number following 20107820
and preceding 20107822 . In scientific notation, it is written as 2.0107821 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 12616640 positive integers (up to 20107821) that are relatively prime to 20107821.
20107821 has 8 divisors, whose sum is 28387584
The reverse of 20107821 is 12870102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred seven thousand eight hundred twenty-one
Scientific notation
2.0107821 × 10^7
Engineering notation
2.0107821 × 10^6
Prime Factorization
3 × 17 × 394271
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20107821
Product of the distinct prime numbers
The prime factorization of 20107821 is 3 × 17 × 394271.
Since it has a total of 3 prime factors.
5 , 10 , 44 , 1 , 657 , 678 , 8222 , 5736 , 20760 , 98360 , 262847 , 2854 , 2123080 , 6901904 , 85885656 , 78803904 , 750951186 , 569919505 , 4348490838 , 4903839878
n×2
40215642
n×3
60323463
n×4
80431284
n×5
100539105
n÷2
10053910.5
n÷3
6702607
n÷3
5026955.25
n÷5
4021564.2
n2
404324465368041
n3
8.1300839755413E+21
n4
1.6347827329515E+29
n5
3.287191856808E+36
2 √n
4484.174505971
3 √n
271.9286730867
4 √n
66.963979167691
5 √n
28.885041915974
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
-20107820
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 20107821 can be divided by 8 positive divisors.
The sum of these divisors (counting 20107821) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101101001000101101
3
Ternary
1101211120202010
4
Quaternary
1030231020231
5
Quinary
20121422241
6
Senary
1554551433
8
Octal
114551055
10
Decimal
20107821
12
Duodecimal
6898579
16
Hexadecimal
132d22d
20
Vigesimal
65d9b1
36
Base36
byzal
md5
33f97bb0fb02aca5f2a1106c27af589b
sha1
9f0dd098fabf8ae197a7a669d1ae00ecf79b7a3d
sha256
97012ffc074fb9cc67416d2f1a192aa463c5caedb693e3d31ab40d649a50f282
sha512
385092646ec3e660eeeec60d15c800adc7bae2c76404af4916005aeb07b5c4877a4c2023ff94ff44c95aa5ce8090b8482aa8209927e837d6b6c4218d5115a651
ripemd-160
a523bde35f7d1f52da696063a24a64c0f6d9daf4
Diameter
40215642
Circumference
126341165.4666
Area
1.2702227700669E+15
Volume
3.4055216120838E+22
Surface area
5.0808910802674E+15
Circumference
126341165.4666
Perimeter
80431284
Area
404324465368041
Diagonal
28436753.167971
Surface area
2425946792208246
Volume
8.1300839755413E+21
Space diagonal
34827767.6015
Perimeter
60323463
Area
1.7507762919014E+14
Altitude
17413883.80075
Surface area
1.7507762919014E+14
Volume
9.5813958512022E+20
Height
9478917.7226568