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14282729 = 18897561
BaseRepresentation
bin110110011110…
…111111101001
3222212122012222
4312132333221
512124021404
61230043425
7232254416
oct66367751
928778188
1014282729
11807590a
124949575
132c61026
141c7b10d
1513c1dbe
hexd9efe9

14282729 has 4 divisors (see below), whose sum is σ = 14292180. Its totient is φ = 14273280.

The previous prime is 14282677. The next prime is 14282731. The reversal of 14282729 is 92728241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92728241 = 102190821.

It can be written as a sum of positive squares in 2 ways, for example, as 5071504 + 9211225 = 2252^2 + 3035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14282729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14282029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1892 + ... + 5669.

It is an arithmetic number, because the mean of its divisors is an integer number (3573045).

Almost surely, 214282729 is an apocalyptic number.

It is an amenable number.

14282729 is a deficient number, since it is larger than the sum of its proper divisors (9451).

14282729 is an equidigital number, since it uses as much as digits as its factorization.

14282729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9450.

The product of its digits is 16128, while the sum is 35.

The square root of 14282729 is about 3779.2497932791. The cubic root of 14282729 is about 242.6258474576.

The spelling of 14282729 in words is "fourteen million, two hundred eighty-two thousand, seven hundred twenty-nine".

Divisors: 1 1889 7561 14282729