16985 is an odd 5-digits composite number following 16984
and preceding 16986 . In scientific notation, it is written as 1.6985 × 10^4.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 13104 positive integers (up to 16985) that are relatively prime to 16985.
16985 has 8 divisors, whose sum is 21120
The reverse of 16985 is 58961
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 29
Digital Root 2
Name
sixteen thousand nine hundred eighty-five
Scientific notation
1.6985 × 10^4
Engineering notation
1.6985 × 10^3
Prime Factorization
43 × 79 × 5
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
16985
Product of the distinct prime numbers
The prime factorization of 16985 is 43 × 79 × 5.
Since it has a total of 3 prime factors.
1 , 3 , 15 , 6 , 616 , 387 , 6395 , 5424 , 42695 , 87872 , 485466 , 85852 , 9885832 , 6923974 , 96897866 , 5733990 , 501000482 , 793912586 , 7719270225 , 1696330985
n×2
33970
n×3
50955
n×4
67940
n×5
84925
n÷2
8492.5
n÷3
5661.6666666667
n÷3
4246.25
n÷5
3397
n2
288490225
n3
4900006471625
n4
83226609920550625
n5
1.4136039695006E+21
2 √n
130.32651303553
3 √n
25.705251088286
4 √n
11.416063815323
5 √n
7.0147647388351
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-16984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 16985 can be divided by 8 positive divisors.
The sum of these divisors (counting 16985) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001001011001
3
Ternary
212022002
4
Quaternary
10021121
5
Quinary
1020420
6
Senary
210345
8
Octal
41131
10
Decimal
16985
12
Duodecimal
99b5
16
Hexadecimal
4259
20
Vigesimal
2295
36
Base36
d3t
md5
b3ca85cd30bca7607c9520accaa4ffcf
sha1
d51ba6d3ba29f8f03c3e1a4dcb1ffab140245b22
sha256
862223fd8d4d636effbd247fb08ec9d32f3f4876b66e89370940ce04c162266d
sha512
7f0dbde03e6e22b0776dd7adf8629f8603e3147fa1058fffbed144921498d065b1af45f25afa722653b47c13adec86ea06ee7a72801bcadb841e52aa5db11521
ripemd-160
fcbdc2fcb87751c43890fd1275370f8996c48bc9
Diameter
33970
Circumference
106719.90244245
Area
906318771.49247
Volume
20525099111733
Surface area
3625275085.9699
Circumference
106719.90244245
Perimeter
67940
Area
288490225
Diagonal
24020.417356907
Surface area
1730941350
Volume
4900006471625
Space diagonal
29418.882966557
Perimeter
50955
Area
124919931.79674
Altitude
14709.441483279
Surface area
124919931.79674
Volume
577471300657.33
Height
8006.8057856357