990686985 is an odd 9-digits composite number following 990686984
and preceding 990686986 . In scientific notation, it is written as 9.90686985 × 10^8.
The sum of its digits is 60. It has a total of 4 prime factors and 16 positive divisors.
There are 497285888 positive integers (up to 990686985) that are relatively prime to 990686985.
990686985 has 16 divisors, whose sum is 1678340736
The reverse of 990686985 is 589686099
Previous prime number is 17
Is Prime? no Number parity odd Number length 9 Sum of Digits 60 Digital Root 6
Name
nine hundred ninety million six hundred eighty-six thousand nine hundred eighty-five
Scientific notation
9.90686985 × 10^8
Engineering notation
9.90686985 × 10^6
Prime Factorization
5 × 3 × 17 × 3885047
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
990686985 Product of the distinct prime numbers
The prime factorization of 990686985 is 5 × 3 × 17 × 3885047.
Since it has a total of 4 prime factors.
4 , 6 , 46 , 83 , 166 , 79 , 7802 , 3343 , 74338 , 58996 , 346618 , 590117 , 6698860 , 1171208 , 90067564 , 53626652 , 193464386 , 363233746 , 4117532704 , 7972477030
n×2
1981373970
n×3
2972060955
n×4
3962747940
n×5
4953434925
n÷2
495343492.5
n÷3
330228995
n÷3
247671746.25
n÷5
198137397
n2
981460702248390225
n3
9.7232034400644E+26
n4
9.632651100579E+35
n5
9.5429420763896E+44
2 √n31475.180460166
3 √n996.88597457807
4 √n177.41245858216
5 √n62.977771886581
1 , 3 , 5 , 15 , 17 , 51 , 85 , 255 , 3885047 , 11655141 , 19425235 , 58275705 , 66045799 , 198137397 , 330228995 , 990686985
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
-990686984 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 990686985 can be divided by 16 positive divisors.
The sum of these divisors (counting 990686985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111011000011001010111100001001
3
Ternary
2120001011010001120
4
Quaternary
323003022330021
5
Quinary
4012103440420
6
Senary
242145505453
8
Octal
7303127411
10
Decimal
990686985
12
Duodecimal
237942289
16
Hexadecimal
3b0caf09
20
Vigesimal
f9bfh95
36
Base36
gdtuyx
md5
2e07517cb2268470f25e9b6bf2e6faa5
sha1
04ea4d1f86d6f06963635c0131bcbca2decf2d94
sha256
c9240575905bb8b29f6f51fdddb3fedfcf9d78bc32def88df76c05dda1b942a3
sha512
79ed1fcf86b7050d29086c4bf3f91c7276e768a09a3b103873b6ea8e4f8628cbcbe60d7f4d1770af11260ac4b608dd2ec5622fd13c5061cd1f3ab9ac42321114
ripemd-160
766a31c3889b3d39275aa5907463797097d35953
Diameter
1981373970
Circumference
6224669908.166
Area
3.0833497319706E+18
Volume
4.0728459328887E+27
Surface area
1.2333398927882E+19
Circumference
6224669908.166
Perimeter
3962747940
Area
981460702248390225
Diagonal
1401042970.2535
Surface area
5888764213490341350
Volume
9.7232034400644E+26
Space diagonal
1715920192.4172
Perimeter
2972060955
Area
4.2498495048161E+17
Altitude
857960096.20861
Surface area
4.2498495048161E+17
Volume
1.1458905145543E+26
Height
467014323.41784