19985909 is an odd 8-digits prime number following 19985908
and preceding 19985910 . In scientific notation, it is written as 1.9985909 × 10^7.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 19985908 positive integers (up to 19985909) that are relatively prime to 19985909.
19985909 has 2 divisors, whose sum is 19985910
The reverse of 19985909 is 90958991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
nineteen million nine hundred eighty-five thousand nine hundred nine
Scientific notation
1.9985909 × 10^7
Engineering notation
1.9985909 × 10^6
Prime Factorization
19985909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19985909
Product of the distinct prime numbers
The prime factorization of 19985909 is 19985909.
Since it has a total of 1 prime factors.
8 , 9 , 23 , 42 , 661 , 993 , 481 , 8163 , 72573 , 70510 , 791054 , 588580 , 2252134 , 4719610 , 47481951 , 44943559 , 751214657 , 944657817 , 984660165 , 2996191777
n×2
39971818
n×3
59957727
n×4
79943636
n×5
99929545
n÷2
9992954.5
n÷3
6661969.6666667
n÷3
4996477.25
n÷5
3997181.8
n2
399436558556281
n3
7.983102710579E+21
n4
1.5954956431129E+29
n5
3.188743073315E+36
2 √n
4470.5602557174
3 √n
271.37799858466
4 √n
66.862248359724
5 √n
28.849931154956
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19985910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9992955
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4470.5603675602
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998999295
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19985909 can be divided by 2 positive divisors.
The sum of these divisors (counting 19985909) is 19985910, the average is 9992955.
Base
System
Value
2
Binary
1001100001111010111110101
3
Ternary
1101121101111212
4
Quaternary
1030033113311
5
Quinary
20104022114
6
Senary
1552211205
8
Octal
114172765
10
Decimal
19985909
12
Duodecimal
6839b05
16
Hexadecimal
130f5f5
20
Vigesimal
64i4f9
36
Base36
bwd85
md5
9ab49280e21d5285536d7c554d177cc1
sha1
5536e67587e06068e61fbb466479954b7200e627
sha256
610e89180593eedd91e8026154b1e964b4377bf28026a51ca8bd95ded607563a
sha512
12af47ae589a3d95c5b1d91aa00fbd299809a3861a1498f865f6cfa8152fd3717e1eab4999d2a95bfcb661600506cdac310949083283f4a7701ecd421bc7fc5b
ripemd-160
0909c780c8caceccc6844af8cc96a961139ca839
Diameter
39971818
Circumference
125575169.77943
Area
1.2548669579356E+15
Volume
3.3439542437877E+22
Surface area
5.0194678317424E+15
Circumference
125575169.77943
Perimeter
79943636
Area
399436558556281
Diagonal
28264343.564155
Surface area
2396619351337686
Volume
7.983102710579E+21
Space diagonal
34616609.823448
Perimeter
59957727
Area
1.7296110345498E+14
Altitude
17308304.911724
Surface area
1.7296110345498E+14
Volume
9.4081767692652E+20
Height
9421447.8547182