20549985 is an odd 8-digits composite number following 20549984
and preceding 20549986 . In scientific notation, it is written as 2.0549985 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 10471680 positive integers (up to 20549985) that are relatively prime to 20549985.
20549985 has 16 divisors, whose sum is 22919168
The reverse of 20549985 is 58994502
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million five hundred forty-nine thousand nine hundred eighty-five
Scientific notation
2.0549985 × 10^7
Engineering notation
2.0549985 × 10^6
Prime Factorization
15 × 61 × 37 × 607
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20549985
Product of the distinct prime numbers
The prime factorization of 20549985 is 15 × 61 × 37 × 607.
Since it has a total of 4 prime factors.
3 , 8 , 89 , 87 , 690 , 495 , 5710 , 4673 , 43969 , 83188 , 149256 , 927248 , 7584750 , 514014 , 83256681 , 32882874 , 236188280 , 677262485 , 5242385453 , 4205770588
n×2
41099970
n×3
61649955
n×4
82199940
n×5
102749925
n÷2
10274992.5
n÷3
6849995
n÷3
5137496.25
n÷5
4109997
n2
422301883500225
n3
8.6782973714014E+21
n4
1.7833888080784E+29
n5
3.6648613255179E+36
2 √n
4533.2091282005
3 √n
273.90744471889
4 √n
67.329110555542
5 √n
29.010973466103
1 , 15 , 37 , 61 , 555 , 607 , 915 , 2257 , 9105 , 22459 , 33855 , 37027 , 336885 , 555405 , 1369999 , 20549985
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
-20549984
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 20549985 can be divided by 16 positive divisors.
The sum of these divisors (counting 20549985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110011001000101100001
3
Ternary
1102200001021120
4
Quaternary
1032121011201
5
Quinary
20230044420
6
Senary
2012242453
8
Octal
116310541
10
Decimal
20549985
12
Duodecimal
6a70429
16
Hexadecimal
1399161
20
Vigesimal
688ej5
36
Base36
c8ggx
md5
286fe81d1cb9c4a3ad357b47f5670a3c
sha1
b5a5ed3ba8207d55af0608fe6f4f400cd4c5ddc6
sha256
c29f0a1acd55531d3433281751c20202d8e10f49106e946985562b7b1db24caf
sha512
40e95e4c549bad1ded0e14444e359fc9f5b365cc428d17ea974fc7e9374f90e542691025c081b1c12f7234d58f0500fcbcc73efeb98882a480330e2c0be2f82e
ripemd-160
515d2de373310510ef253fe7cba239c144cf6124
Diameter
41099970
Circumference
129119363.81476
Area
1.3267004948014E+15
Volume
3.635156702355E+22
Surface area
5.3068019792058E+15
Circumference
129119363.81476
Perimeter
82199940
Area
422301883500225
Diagonal
29062067.493564
Surface area
2533811301001350
Volume
8.6782973714014E+21
Space diagonal
35593618.114778
Perimeter
61649955
Area
1.8286207958861E+14
Altitude
17796809.057389
Surface area
1.8286207958861E+14
Volume
1.0227471534119E+21
Height
9687355.8311879