20681685 is an odd 8-digits composite number following 20681684
and preceding 20681686 . In scientific notation, it is written as 2.0681685 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 11030208 positive integers (up to 20681685) that are relatively prime to 20681685.
20681685 has 4 divisors, whose sum is 21141324
The reverse of 20681685 is 58618602
Previous prime number is 45
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million six hundred eighty-one thousand six hundred eighty-five
Scientific notation
2.0681685 × 10^7
Engineering notation
2.0681685 × 10^6
Prime Factorization
45 × 459593
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20681685
Product of the distinct prime numbers
The prime factorization of 20681685 is 45 × 459593.
Since it has a total of 2 prime factors.
9 , 2 , 68 , 61 , 174 , 590 , 9222 , 167 , 47527 , 80880 , 49809 , 577772 , 9003336 , 1320594 , 86318406 , 82943586 , 388772286 , 479558213 , 462694968 , 4928444428
n×2
41363370
n×3
62045055
n×4
82726740
n×5
103408425
n÷2
10340842.5
n÷3
6893895
n÷3
5170421.25
n÷5
4136337
n2
427732094439225
n3
8.8462204415823E+21
n4
1.8295474461337E+29
n5
3.7838123973491E+36
2 √n
4547.7120621253
3 √n
274.49133518988
4 √n
67.436726359791
5 √n
29.048063402648
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681684
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681685 can be divided by 4 positive divisors.
The sum of these divisors (counting 20681685) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111001001111010101
3
Ternary
1102220201221100
4
Quaternary
1032321033111
5
Quinary
20243303220
6
Senary
2015140313
8
Octal
116711725
10
Decimal
20681685
12
Duodecimal
6b14699
16
Hexadecimal
13b93d5
20
Vigesimal
695445
36
Base36
cba39
md5
06cec8a732d4f7604c8b49fb7d79c29f
sha1
e6950f7fdb5b46c57ff672c3419f84b15328e524
sha256
2dc19ea7b92c10ef5723376aae4dd43cdc4cc2c7ca7a461e7e630cdf266ed108
sha512
dcda2cfe4cb9ce5c5efabf2ad2935cfa500820ecb2d18fd5e174b07a96492471cdfe44463a8b06ace0e4e44866d29ff5c09b931dc519d1c20a0ba3b757086288
ripemd-160
0e08aaa4750eab1d973e6e68f6b510897e3e3afa
Diameter
41363370
Circumference
129946859.31972
Area
1.3437600055948E+15
Volume
3.7054961535081E+22
Surface area
5.3750400223794E+15
Circumference
129946859.31972
Perimeter
82726740
Area
427732094439225
Diagonal
29248319.419728
Surface area
2566392566635350
Volume
8.8462204415823E+21
Space diagonal
35821729.206135
Perimeter
62045055
Area
1.8521342989915E+14
Altitude
17910864.603068
Surface area
1.8521342989915E+14
Volume
1.042537077019E+21
Height
9749439.8065761