19904821 is an odd 8-digits composite number following 19904820
and preceding 19904822 . In scientific notation, it is written as 1.9904821 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 18424560 positive integers (up to 19904821) that are relatively prime to 19904821.
19904821 has 8 divisors, whose sum is 21441024
The reverse of 19904821 is 12840991
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
nineteen million nine hundred four thousand eight hundred twenty-one
Scientific notation
1.9904821 × 10^7
Engineering notation
1.9904821 × 10^6
Prime Factorization
23 × 31 × 27917
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19904821
Product of the distinct prime numbers
The prime factorization of 19904821 is 23 × 31 × 27917.
Since it has a total of 3 prime factors.
5 , 1 , 24 , 64 , 181 , 133 , 9839 , 6678 , 29260 , 45127 , 864082 , 384670 , 6329574 , 1333408 , 67882828 , 5493459 , 969721068 , 223014864 , 2006455139 , 1954402677
n×2
39809642
n×3
59714463
n×4
79619284
n×5
99524105
n÷2
9952410.5
n÷3
6634940.3333333
n÷3
4976205.25
n÷5
3980964.2
n2
396201899042041
n3
7.8863278802919E+21
n4
1.5697594480452E+29
n5
3.1245780826398E+36
2 √n
4461.4819286869
3 √n
271.01048420108
4 √n
66.794325572513
5 √n
28.826482743587
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
-19904820
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 19904821 can be divided by 8 positive divisors.
The sum of these divisors (counting 19904821) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011111011100100110101
3
Ternary
1101110021021121
4
Quaternary
1023323210311
5
Quinary
20043423241
6
Senary
1550343541
8
Octal
113734465
10
Decimal
19904821
12
Duodecimal
67babb1
16
Hexadecimal
12fb935
20
Vigesimal
648211
36
Base36
bumnp
md5
b8428195fdf0362cd833e5676167bdfc
sha1
74223d73b840820544b6ae1b3d3524b067f99aa2
sha256
01de153b67b5488216743b9c0cdb54d2f241d7a436816021d6eb4545c859965b
sha512
b0f3c8eae6249b32ef272e9e9bcd2f19927112270aae02f580b47c3fd5454a972d44ba3347d214f7f8c62044710c6be6284a7671545bc160baca4a469ea2a7c2
ripemd-160
b9e1083094c6aef453ce7618adc45eb8e1d27a98
Diameter
39809642
Circumference
125065678.84924
Area
1.2447049753688E+15
Volume
3.3034172976701E+22
Surface area
4.9788199014752E+15
Circumference
125065678.84924
Perimeter
79619284
Area
396201899042041
Diagonal
28149667.814809
Surface area
2377211394252246
Volume
7.8863278802919E+21
Space diagonal
34476161.287564
Perimeter
59714463
Area
1.7156045479902E+14
Altitude
17238080.643782
Surface area
1.7156045479902E+14
Volume
9.2941265380249E+20
Height
9383222.6049363