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14815 = 52963
BaseRepresentation
bin11100111011111
3202022201
43213133
5433230
6152331
761123
oct34737
922281
1014815
1110149
1286a7
136988
145583
1545ca
hex39df

14815 has 4 divisors (see below), whose sum is σ = 17784. Its totient is φ = 11848.

The previous prime is 14813. The next prime is 14821. The reversal of 14815 is 51841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51841 = 471103.

It is a cyclic number.

It is not a de Polignac number, because 14815 - 21 = 14813 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 14792 and 14801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (4446).

214815 is an apocalyptic number.

14815 is a deficient number, since it is larger than the sum of its proper divisors (2969).

14815 is an equidigital number, since it uses as much as digits as its factorization.

14815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968.

The product of its digits is 160, while the sum is 19.

The square root of 14815 is about 121.7168846134. The cubic root of 14815 is about 24.5603123247.

The spelling of 14815 in words is "fourteen thousand, eight hundred fifteen".

Divisors: 1 5 2963 14815