20687085 is an odd 8-digits composite number following 20687084
and preceding 20687086 . In scientific notation, it is written as 2.0687085 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 10775520 positive integers (up to 20687085) that are relatively prime to 20687085.
20687085 has 16 divisors, whose sum is 30108672
The reverse of 20687085 is 58078602
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred eighty-seven thousand eighty-five
Scientific notation
2.0687085 × 10^7
Engineering notation
2.0687085 × 10^6
Prime Factorization
15 × 3 × 43 × 10691
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20687085
Product of the distinct prime numbers
The prime factorization of 20687085 is 15 × 3 × 43 × 10691.
Since it has a total of 4 prime factors.
8 , 8 , 71 , 13 , 666 , 435 , 7831 , 3930 , 80392 , 5927 , 304030 , 272109 , 2910606 , 5909779 , 37241061 , 39897197 , 320246896 , 359566799 , 6991042250 , 2483750477
n×2
41374170
n×3
62061255
n×4
82748340
n×5
103435425
n÷2
10343542.5
n÷3
6895695
n÷3
5171771.25
n÷5
4137417
n2
427955485797225
n3
8.8531515109035E+21
n4
1.8314589782394E+29
n5
3.7887547556851E+36
2 √n
4548.3057285103
3 √n
274.51522306012
4 √n
67.441127870983
5 √n
29.049580137503
1 , 3 , 15 , 43 , 45 , 129 , 645 , 1935 , 10691 , 32073 , 160365 , 459713 , 481095 , 1379139 , 6895695 , 20687085
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
-20687084
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 20687085 can be divided by 16 positive divisors.
The sum of these divisors (counting 20687085) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010100011101101
3
Ternary
1102221000100100
4
Quaternary
1032322203231
5
Quinary
20243441320
6
Senary
2015221313
8
Octal
116724355
10
Decimal
20687085
12
Duodecimal
6b17839
16
Hexadecimal
13ba8ed
20
Vigesimal
695he5
36
Base36
cbe99
md5
d1c67198a736d09c1bcbae495d6bd668
sha1
9b748435d42479f86e562781f0d287ea1e2c1f0c
sha256
e94f1369f39325bba9266a0129fdfd1785d8b545e12bef7a538b616e6f6f36c4
sha512
225c7cea35f95f1b2e64866d48b867011f6bfe033e979fce91918eacec4dc79eba20f121e7cf8542f2ba53d1c55148a285318f03b46c2f2db563a5e84f8cd82d
ripemd-160
65a003ca28ee59edc622ec169d32e19ae1588420
Diameter
41374170
Circumference
129980788.52038
Area
1.344461810244E+15
Volume
3.7083994330362E+22
Surface area
5.3778472409761E+15
Circumference
129980788.52038
Perimeter
82748340
Area
427955485797225
Diagonal
29255956.172965
Surface area
2567732914783350
Volume
8.8531515109035E+21
Space diagonal
35831082.280496
Perimeter
62061255
Area
1.8531016119465E+14
Altitude
17915541.140248
Surface area
1.8531016119465E+14
Volume
1.043353911372E+21
Height
9751985.3909883