198739905 is an odd 9-digits composite number following 198739904
and preceding 198739906 . In scientific notation, it is written as 1.98739905 × 10^8.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 77635584 positive integers (up to 198739905) that are relatively prime to 198739905.
198739905 has 16 divisors, whose sum is 221464320
The reverse of 198739905 is 509937891
Previous prime number is 19
Is Prime? no Number parity odd Number length 9 Sum of Digits 51 Digital Root 6
Name
one hundred ninety-eight million seven hundred thirty-nine thousand nine hundred five
Scientific notation
1.98739905 × 10^8
Engineering notation
1.98739905 × 10^6
Prime Factorization
21 × 5135 × 19 × 97
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
198739905 Product of the distinct prime numbers
The prime factorization of 198739905 is 21 × 5135 × 19 × 97.
Since it has a total of 4 prime factors.
7 , 9 , 45 , 55 , 186 , 841 , 1897 , 6401 , 34811 , 79170 , 142114 , 34494 , 2381638 , 2796251 , 82034523 , 73621962 , 829433419 , 854098789 , 8492495092 , 2847128929
n×2
397479810
n×3
596219715
n×4
794959620
n×5
993699525
n÷2
99369952.5
n÷3
66246635
n÷3
49684976.25
n÷5
39747981
n2
39497549839409025
n3
7.8497393028169E+24
n4
1.5600564433166E+33
n5
3.1004546933938E+41
2 √n14097.514142571
3 √n583.57277915949
4 √n118.73295306094
5 √n45.672734634969
1 , 19 , 21 , 97 , 399 , 1843 , 2037 , 5135 , 38703 , 97565 , 107835 , 498095 , 2048865 , 9463805 , 10459995 , 198739905
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
-198739904 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 198739905 can be divided by 16 positive divisors.
The sum of these divisors (counting 198739905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1011110110001000011111000001
3
Ternary
111211222000220020
4
Quaternary
23312020133001
5
Quinary
401334134110
6
Senary
31415404053
8
Octal
1366103701
10
Decimal
198739905
12
Duodecimal
56683629
16
Hexadecimal
bd887c1
20
Vigesimal
32229f5
36
Base36
3aboox
md5
39fba2e132801c8738f63bb8f21cba8c
sha1
e589a255683644616ee5ff5e3cbe1c22a1d528c7
sha256
0a170ddceed6f4f3d07d292311f511d92e31db6848453f0a9d36a442e3e68b06
sha512
eb8f849496a87d050ea2246e57ac1c400bbc569dc5d9e4871b4eae5573a35f78694af681eabc95a862dc0275935a26dbb80e80426fe7a82cd9d1e57d38d5329a
ripemd-160
89d709997262399db92dddde05feb7d2afb9209f
Diameter
397479810
Circumference
1248719651.0463
Area
1.2408521241028E+17
Volume
3.2880911101766E+25
Surface area
4.9634084964114E+17
Circumference
1248719651.0463
Perimeter
794959620
Area
39497549839409025
Diagonal
281060669.03574
Surface area
236985299036454150
Volume
7.8497393028169E+24
Space diagonal
344227612.95141
Perimeter
596219715
Area
1.7102940774085E+16
Altitude
172113806.47571
Surface area
1.7102940774085E+16
Volume
9.2510064859473E+23
Height
93686889.67858