20446985 is an odd 8-digits composite number following 20446984
and preceding 20446986 . In scientific notation, it is written as 2.0446985 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 15099264 positive integers (up to 20446985) that are relatively prime to 20446985.
20446985 has 8 divisors, whose sum is 26423880
The reverse of 20446985 is 58964402
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million four hundred forty-six thousand nine hundred eighty-five
Scientific notation
2.0446985 × 10^7
Engineering notation
2.0446985 × 10^6
Prime Factorization
5 × 13 × 314569
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20446985
Product of the distinct prime numbers
The prime factorization of 20446985 is 5 × 13 × 314569.
Since it has a total of 3 prime factors.
7 , 8 , 7 , 31 , 616 , 503 , 4809 , 1385 , 49211 , 2672 , 626591 , 584220 , 9463351 , 7269698 , 91784007 , 77543536 , 35786353 , 769196476 , 9833959573 , 6254565006
n×2
40893970
n×3
61340955
n×4
81787940
n×5
102234925
n÷2
10223492.5
n÷3
6815661.6666667
n÷3
5111746.25
n÷5
4089397
n2
418079195590225
n3
8.5484590410454E+21
n4
1.7479021378537E+29
n5
3.5739328794162E+36
2 √n
4521.8342517169
3 √n
273.44905454303
4 √n
67.244585296638
5 √n
28.981833404421
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
-20446984
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 20446985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20446985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101111111111100001001
3
Ternary
1102110210222202
4
Quaternary
1031333330021
5
Quinary
20213300420
6
Senary
2010125545
8
Octal
115777411
10
Decimal
20446985
12
Duodecimal
6a208b5
16
Hexadecimal
137ff09
20
Vigesimal
67fh95
36
Base36
c68zt
md5
ffac18049d1885c71514d04e5397d826
sha1
941f8041b7bf6adee12b6f7183e59877e6d66f63
sha256
cd210d9dc046a3edd7fbe7ba835d30e18239f9de84b52e3c760c3ad2b0411abc
sha512
0293613374381817adc03846384142f6045d5b5ffc5e0f206aae0eab96cb23e0dc5ff42bac5183f3ec58e1e7b5c85d6c23938d122a7258ad6994046c6505a0de
ripemd-160
6e890ab9b250b7ea3a039cd10ad1c7806ecf8761
Diameter
40893970
Circumference
128472195.72812
Area
1.313434529485E+15
Volume
3.5807701497149E+22
Surface area
5.2537381179399E+15
Circumference
128472195.72812
Perimeter
81787940
Area
418079195590225
Diagonal
28916403.496639
Surface area
2508475173541350
Volume
8.5484590410454E+21
Space diagonal
35415216.881599
Perimeter
61340955
Area
1.8103360208745E+14
Altitude
17707608.440799
Surface area
1.8103360208745E+14
Volume
1.0074455594364E+21
Height
9638801.1655464