19990421 is an odd 8-digits composite number following 19990420
and preceding 19990422 . In scientific notation, it is written as 1.9990421 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 18173100 positive integers (up to 19990421) that are relatively prime to 19990421.
19990421 has 4 divisors, whose sum is 21807744
The reverse of 19990421 is 12409991
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
nineteen million nine hundred ninety thousand four hundred twenty-one
Scientific notation
1.9990421 × 10^7
Engineering notation
1.9990421 × 10^6
Prime Factorization
11 × 1817311
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19990421
Product of the distinct prime numbers
The prime factorization of 19990421 is 11 × 1817311.
Since it has a total of 2 prime factors.
4 , 3 , 36 , 38 , 614 , 963 , 165 , 1923 , 82200 , 29504 , 36991 , 799584 , 7959714 , 8478596 , 47197824 , 17745165 , 758260267 , 823102319 , 3719610603 , 3964007319
n×2
39980842
n×3
59971263
n×4
79961684
n×5
99952105
n÷2
9995210.5
n÷3
6663473.6666667
n÷3
4997605.25
n÷5
3998084.2
n2
399616931757241
n3
7.9885107045555E+21
n4
1.5969369214707E+29
n5
3.1923441370644E+36
2 √n
4471.0648619764
3 √n
271.39841906186
4 √n
66.866021729847
5 √n
28.851233664
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
-19990420
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 19990421 can be divided by 4 positive divisors.
The sum of these divisors (counting 19990421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010000011110010101
3
Ternary
1101121121200222
4
Quaternary
1030100132111
5
Quinary
20104143141
6
Senary
1552244125
8
Octal
114203625
10
Decimal
19990421
12
Duodecimal
6840645
16
Hexadecimal
1310795
20
Vigesimal
64ig11
36
Base36
bwgph
md5
6543c35a85d45d886440d679a29cd6c5
sha1
506aa59e281eaaa044492b1dee262c3908cf2622
sha256
8fd30f920d741ff670484778f76efaeeb0958fa1750b3992f4e6c1da2f8f6a7f
sha512
04035aed397c9afb10966a491a49aa6aba38d2e68381a5ca247f9992987e651d563fc2fb9fe8dadf04f3741754bc13c20f67a7ca0f8ee5e9a81ef26ec055fb49
ripemd-160
d62d009793ef05e793d8dfb56e8ff389bb7a2627
Diameter
39980842
Circumference
125603519.51153
Area
1.2554336170586E+15
Volume
3.3462195390073E+22
Surface area
5.0217344682346E+15
Circumference
125603519.51153
Perimeter
79961684
Area
399616931757241
Diagonal
28270724.495748
Surface area
2397701590543446
Volume
7.9885107045555E+21
Space diagonal
34624424.836692
Perimeter
59971263
Area
1.7303920734208E+14
Altitude
17312212.418346
Surface area
1.7303920734208E+14
Volume
9.4145501512876E+20
Height
9423574.831916