20170985 is an odd 8-digits composite number following 20170984
and preceding 20170986 . In scientific notation, it is written as 2.0170985 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 16020144 positive integers (up to 20170985) that are relatively prime to 20170985.
20170985 has 8 divisors, whose sum is 24380160
The reverse of 20170985 is 58907102
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred seventy thousand nine hundred eighty-five
Scientific notation
2.0170985 × 10^7
Engineering notation
2.0170985 × 10^6
Prime Factorization
5 × 139 × 29023
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20170985
Product of the distinct prime numbers
The prime factorization of 20170985 is 5 × 139 × 29023.
Since it has a total of 3 prime factors.
9 , 1 , 22 , 70 , 856 , 599 , 1624 , 6654 , 81261 , 41198 , 372212 , 587308 , 1453603 , 7470754 , 97804204 , 79872491 , 533138032 , 27199886 , 9316567354 , 2036319772
n×2
40341970
n×3
60512955
n×4
80683940
n×5
100854925
n÷2
10085492.5
n÷3
6723661.6666667
n÷3
5042746.25
n÷5
4034197
n2
406868635870225
n3
8.2069411511088E+21
n4
1.655420868549E+29
n5
3.3391469508188E+36
2 √n
4491.211974512
3 √n
272.21310883153
4 √n
67.016505239471
5 √n
28.903166272761
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
-20170984
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 20170985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20170985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111100100011101001
3
Ternary
1101221210101112
4
Quaternary
1030330203221
5
Quinary
20130432420
6
Senary
2000200105
8
Octal
114744351
10
Decimal
20170985
12
Duodecimal
6909035
16
Hexadecimal
133c8e9
20
Vigesimal
661795
36
Base36
c0c15
md5
9f612cc2281aae215341490243c58559
sha1
afbd5ffc13b82211d36ce7ab890b31c737334914
sha256
30803788e5efe45f050bbfccf9402215299cce40b1a5150a105113a0845c68fc
sha512
073986a161ef13907f36a2dd66fb12efad0838c47d19d2e1cbddf6c177290381a1dbbdacacf62021027ab49ecd43f076b1832a3e2ce6f6ce76a8f668c5b18a13
ripemd-160
3fad04533bd47352911d03994b5dfd306dfca010
Diameter
40341970
Circumference
126738036.58334
Area
1.278215517426E+15
Volume
3.4377154705023E+22
Surface area
5.112862069704E+15
Circumference
126738036.58334
Perimeter
80683940
Area
406868635870225
Diagonal
28526080.553424
Surface area
2441211815221350
Volume
8.2069411511088E+21
Space diagonal
34937170.85871
Perimeter
60512955
Area
1.7617928733337E+14
Altitude
17468585.429355
Surface area
1.7617928733337E+14
Volume
9.6719729012466E+20
Height
9508693.5178081