1998685 is an odd 7-digits composite number following 1998684
and preceding 1998686 . In scientific notation, it is written as 1.998685 × 10^6.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 1456128 positive integers (up to 1998685) that are relatively prime to 1998685.
1998685 has 16 divisors, whose sum is 2617776
The reverse of 1998685 is 5868991
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 46
Digital Root 1
Name
one million nine hundred ninety-eight thousand six hundred eighty-five
Scientific notation
1.998685 × 10^6
Engineering notation
1.998685 × 10^6
Prime Factorization
5 × 97 × 13 × 317
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1998685
Product of the distinct prime numbers
The prime factorization of 1998685 is 5 × 97 × 13 × 317.
Since it has a total of 4 prime factors.
1 , 2 , 89 , 69 , 946 , 68 , 2048 , 669 , 67771 , 39156 , 225830 , 935023 , 2832944 , 3593147 , 65818604 , 23248368 , 126672370 , 258772245 , 8447431607 , 5965708797
n×2
3997370
n×3
5996055
n×4
7994740
n×5
9993425
n÷2
999342.5
n÷3
666228.33333333
n÷3
499671.25
n÷5
399737
n2
3994741729225
n3
7984230373076069125
n4
1.5957961483212E+25
n5
3.1894938247073E+31
2 √n
1413.7485632177
3 √n
125.96448566569
4 √n
37.599847914821
5 √n
18.203247358452
1 , 5 , 13 , 65 , 97 , 317 , 485 , 1261 , 1585 , 4121 , 6305 , 20605 , 30749 , 153745 , 399737 , 1998685
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
-1998684
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 1998685 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998685) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100111111101011101
3
Ternary
10202112200101
4
Quaternary
13213331131
5
Quinary
1002424220
6
Senary
110501101
8
Octal
7477535
10
Decimal
1998685
12
Duodecimal
804791
16
Hexadecimal
1e7f5d
20
Vigesimal
c9ge5
36
Base36
16u71
md5
0a8ce416bbc70f82032a2c1b0bdf48c0
sha1
9ca102a53372b0f03eef2ad4a5b57938535d9073
sha256
2bd5a7ae0415f4f27e528b50ed50374cf6d3171fac86c5c5fe58803f8cc55e7d
sha512
79c70e52582298563ff7bf96477c1a6728bfdb522b89ece4846443fefffd154d760081d1c29c92857f071a30bcfff2978883992ed2b33ff2156e48c07347a374
ripemd-160
2c48ab4aeda943daf0a72dd2a1c156fa583e9a45
Diameter
3997370
Circumference
12558108.22568
Area
12549851269522
Volume
3.3444265979499E+19
Surface area
50199405078087
Circumference
12558108.22568
Perimeter
7994740
Area
3994741729225
Diagonal
2826567.4339117
Surface area
23968450375350
Volume
7984230373076069125
Space diagonal
3461823.9683258
Perimeter
5996055
Area
1729773909533.3
Altitude
1730911.9841629
Surface area
1729773909533.3
Volume
9.4095057322628E+17
Height
942189.14463722