20142785 is an odd 8-digits composite number following 20142784
and preceding 20142786 . In scientific notation, it is written as 2.0142785 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 14819520 positive integers (up to 20142785) that are relatively prime to 20142785.
20142785 has 16 divisors, whose sum is 26127360
The reverse of 20142785 is 58724102
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred forty-two thousand seven hundred eighty-five
Scientific notation
2.0142785 × 10^7
Engineering notation
2.0142785 × 10^6
Prime Factorization
5 × 13 × 431 × 719
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20142785
Product of the distinct prime numbers
The prime factorization of 20142785 is 5 × 13 × 431 × 719.
Since it has a total of 4 prime factors.
3 , 7 , 35 , 41 , 726 , 383 , 1834 , 6852 , 94332 , 79888 , 280432 , 726340 , 8967359 , 6295458 , 52748609 , 67079604 , 478048882 , 64876600 , 265500299 , 4766827210
n×2
40285570
n×3
60428355
n×4
80571140
n×5
100713925
n÷2
10071392.5
n÷3
6714261.6666667
n÷3
5035696.25
n÷5
4028557
n2
405731787556225
n3
8.1725681644107E+21
n4
1.6461828343357E+29
n5
3.3158706902715E+36
2 √n
4488.0714120878
3 √n
272.08619402826
4 √n
66.993069881054
5 √n
28.895080148321
1 , 5 , 13 , 65 , 431 , 719 , 2155 , 3595 , 5603 , 9347 , 28015 , 46735 , 309889 , 1549445 , 4028557 , 20142785
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
-20142784
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 20142785 can be divided by 16 positive divisors.
The sum of these divisors (counting 20142785) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110101101011000001
3
Ternary
1101220100201002
4
Quaternary
1030311223001
5
Quinary
20124032120
6
Senary
1555421345
8
Octal
114655301
10
Decimal
20142785
12
Duodecimal
68b4855
16
Hexadecimal
1335ac1
20
Vigesimal
65hgj5
36
Base36
bzq9t
md5
06c610b348d6672160a950d1d3824743
sha1
3c65d3f20533587053d4d1ba302bc21b2e0dfbb3
sha256
aba0772cc9a4aade4503d8a05896f058de7bc27c883475406f3962d310d47f11
sha512
e2f7396ac6682c493b85ea9a89c2f43f8de355968551d51f5ba954a84e2ff0b76bfdabfb2b198c53f27eeb1f4775f77ef1fff2ee8d721051436091d8a053f2b0
ripemd-160
672cd3d85fd149fc7b1a5d99045f396efb19002c
Diameter
40285570
Circumference
126560850.75768
Area
1.2746440031145E+15
Volume
3.4233173475033E+22
Surface area
5.098576012458E+15
Circumference
126560850.75768
Perimeter
80571140
Area
405731787556225
Diagonal
28486199.730965
Surface area
2434390725337350
Volume
8.1725681644107E+21
Space diagonal
34888327.025936
Perimeter
60428355
Area
1.7568701757328E+14
Altitude
17444163.512968
Surface area
1.7568701757328E+14
Volume
9.6314639479402E+20
Height
9495399.9103218