19990909 is an odd 8-digits composite number following 19990908
and preceding 19990910 . In scientific notation, it is written as 1.9990909 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 19942780 positive integers (up to 19990909) that are relatively prime to 19990909.
19990909 has 4 divisors, whose sum is 20039040
The reverse of 19990909 is 90909991
Previous prime number is 419
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
nineteen million nine hundred ninety thousand nine hundred nine
Scientific notation
1.9990909 × 10^7
Engineering notation
1.9990909 × 10^6
Prime Factorization
419 × 47711
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19990909
Product of the distinct prime numbers
The prime factorization of 19990909 is 419 × 47711.
Since it has a total of 2 prime factors.
5 , 6 , 28 , 62 , 142 , 530 , 4844 , 2766 , 93758 , 78023 , 131647 , 583975 , 521502 , 8947030 , 69615231 , 16156218 , 507264702 , 318452685 , 2824873603 , 90423575
n×2
39981818
n×3
59972727
n×4
79963636
n×5
99954545
n÷2
9995454.5
n÷3
6663636.3333333
n÷3
4997727.25
n÷5
3998181.8
n2
399636442646281
n3
7.9890957580255E+21
n4
1.5970928629097E+29
n5
3.1927338086978E+36
2 √n
4471.1194347725
3 √n
271.40062747543
4 √n
66.866429804293
5 √n
28.85137452411
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
-19990908
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 19990909 can be divided by 4 positive divisors.
The sum of these divisors (counting 19990909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010000100101111101
3
Ternary
1101121122101001
4
Quaternary
1030100211331
5
Quinary
20104202114
6
Senary
1552250301
8
Octal
114204575
10
Decimal
19990909
12
Duodecimal
6840991
16
Hexadecimal
131097d
20
Vigesimal
64ih59
36
Base36
bwh31
md5
093bd2299e0d90de4cf96a53ec3d13c1
sha1
962c6a202def69b1a6b12a8c4c8a41796e1d1d74
sha256
c37266cfdce172f00e90123dc53e3492698cd9dab8888228451a94e73673e3d5
sha512
aa0d63e87b6534dbfb5b2b855971af07a3e75abb42c5fd10490a869d2e3414d183db34837167842a50048855215259159c51f02067c9298f063eb949cfda2839
ripemd-160
185e0de4c16d63f046555750cb4ed0f596c8e36f
Diameter
39981818
Circumference
125606585.70596
Area
1.2554949123243E+15
Volume
3.3464646056318E+22
Surface area
5.0219796492973E+15
Circumference
125606585.70596
Perimeter
79963636
Area
399636442646281
Diagonal
28271414.631966
Surface area
2397818655877686
Volume
7.9890957580255E+21
Space diagonal
34625270.077486
Perimeter
59972727
Area
1.7304765580486E+14
Altitude
17312635.038743
Surface area
1.7304765580486E+14
Volume
9.4152396434142E+20
Height
9423804.8773221