19984990 is an even 8-digits composite number following 19984989
and preceding 19984991 . In scientific notation, it is written as 1.9984990 × 10^7.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 7974400 positive integers (up to 19984990) that are relatively prime to 19984990.
19984990 has 16 divisors, whose sum is 36061200
The reverse of 19984990 is 09948991
Previous prime number is 449
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred eighty-four thousand nine hundred ninety
Scientific notation
1.9984990 × 10^7
Engineering notation
1.9984990 × 10^6
Prime Factorization
2 × 5 × 449 × 4451
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19984990
Product of the distinct prime numbers
The prime factorization of 19984990 is 2 × 5 × 449 × 4451.
Since it has a total of 4 prime factors.
1 , 10 , 85 , 3 , 222 , 369 , 6057 , 9423 , 83219 , 52058 , 849445 , 183386 , 6594463 , 2210495 , 75159828 , 18541325 , 585826527 , 952776734 , 2679624506 , 7889302106
n×2
39969980
n×3
59954970
n×4
79939960
n×5
99924950
n÷2
9992495
n÷3
6661663.3333333
n÷3
4996247.5
n÷5
3996998
n2
399399825300100
n3
7.9820015146242E+21
n4
1.5952022044975E+29
n5
3.1880100104861E+36
2 √n
4470.4574709978
3 √n
271.37383898396
4 √n
66.861479724859
5 √n
28.849665832279
1 , 2 , 5 , 10 , 449 , 898 , 2245 , 4451 , 4490 , 8902 , 22255 , 44510 , 1998499 , 3996998 , 9992495 , 19984990
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19984989
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19984990 can be divided by 16 positive divisors.
The sum of these divisors (counting 19984990) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100001111001001011110
3
Ternary
1101121100020211
4
Quaternary
1030033021132
5
Quinary
20104004430
6
Senary
1552203034
8
Octal
114171136
10
Decimal
19984990
12
Duodecimal
683947a
16
Hexadecimal
130f25e
20
Vigesimal
64i29a
36
Base36
bwcim
md5
1523200e525a453695919aecc5ada00c
sha1
8ca504b86241f486b7a2fc2f0c071e58c49ec78c
sha256
ee473f86f98c7f07bc4bfbcd45cc02950412fb0a0374695f0cca9a48d8c979ce
sha512
c9b7a3dfc2cb1741e2f1fb4af9752e760d75879b50f964a253c9d3db3675cbef3975f68cfbdcbc4e06877404d5a8f735e81cc0b7f3ce6f64b692c0b05a69480e
ripemd-160
3a5e098d3adc6be3bf8bf036a442e7d66b797448
Diameter
39969980
Circumference
125569395.53213
Area
1.2547515570078E+15
Volume
3.3434929759048E+22
Surface area
5.0190062280314E+15
Circumference
125569395.53213
Perimeter
79939960
Area
399399825300100
Diagonal
28263043.901891
Surface area
2396398951800600
Volume
7.9820015146242E+21
Space diagonal
34615018.068756
Perimeter
59954970
Area
1.7294519748848E+14
Altitude
17307509.034378
Surface area
1.7294519748848E+14
Volume
9.4068789973868E+20
Height
9421014.6339636