20571985 is an odd 8-digits composite number following 20571984
and preceding 20571986 . In scientific notation, it is written as 2.0571985 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 14106480 positive integers (up to 20571985) that are relatively prime to 20571985.
20571985 has 4 divisors, whose sum is 21159792
The reverse of 20571985 is 58917502
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million five hundred seventy-one thousand nine hundred eighty-five
Scientific notation
2.0571985 × 10^7
Engineering notation
2.0571985 × 10^6
Prime Factorization
35 × 587771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20571985
Product of the distinct prime numbers
The prime factorization of 20571985 is 35 × 587771.
Since it has a total of 2 prime factors.
8 , 6 , 3 , 54 , 838 , 729 , 7993 , 1905 , 19433 , 46128 , 442591 , 400489 , 6364369 , 2478747 , 11207726 , 34642192 , 199778839 , 501731632 , 4127770613 , 8794839761
n×2
41143970
n×3
61715955
n×4
82287940
n×5
102859925
n÷2
10285992.5
n÷3
6857328.3333333
n÷3
5142996.25
n÷5
4114397
n2
423206566840225
n3
8.7061991449386E+21
n4
1.7910379821669E+29
n5
3.6845206503568E+36
2 √n
4535.6350161802
3 √n
274.00515467952
4 √n
67.347123295507
5 √n
29.017182407679
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
-20571984
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 20571985 can be divided by 4 positive divisors.
The sum of these divisors (counting 20571985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011110011101010001
3
Ternary
1102201011110101
4
Quaternary
1032132131101
5
Quinary
20231300420
6
Senary
2012532401
8
Octal
116363521
10
Decimal
20571985
12
Duodecimal
6a81101
16
Hexadecimal
139e751
20
Vigesimal
68b9j5
36
Base36
c8xg1
md5
d0252c564a637a322188ffc1b81a0461
sha1
22accb208c31f3b38729de022d28666e94ec4fb6
sha256
3ba1fb4b56382a86fa62f386b479532381f6275eb77e1e212170c1a7effeb87f
sha512
6082498b4a30100c77a6991bc74903d5d8118222319c26cbc4a7d6827ef60952cdb4f181ade58892212f3ef9129f8452f30e670b7c46c66c9f4ff0a1f1bf9836
ripemd-160
f81553a36e88d11f7bf04c6712545e1c78b7ddab
Diameter
41143970
Circumference
129257593.89152
Area
1.3295426413362E+15
Volume
3.6468441699238E+22
Surface area
5.3181705653448E+15
Circumference
129257593.89152
Perimeter
82287940
Area
423206566840225
Diagonal
29093180.191936
Surface area
2539239401041350
Volume
8.7061991449386E+21
Space diagonal
35631723.232545
Perimeter
61715955
Area
1.8325381896602E+14
Altitude
17815861.616272
Surface area
1.8325381896602E+14
Volume
1.0260354089578E+21
Height
9697726.7306453