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14905 = 511271
BaseRepresentation
bin11101000111001
3202110001
43220321
5434110
6153001
761312
oct35071
922401
1014905
1110220
128761
136a27
145609
15463a
hex3a39

14905 has 8 divisors (see below), whose sum is σ = 19584. Its totient is φ = 10800.

The previous prime is 14897. The next prime is 14923. The reversal of 14905 is 50941.

14905 = 32 + 42 + ... + 352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14905 - 23 = 14897 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

14905 is a lucky number.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81 + ... + 190.

It is an arithmetic number, because the mean of its divisors is an integer number (2448).

214905 is an apocalyptic number.

It is an amenable number.

14905 is a deficient number, since it is larger than the sum of its proper divisors (4679).

14905 is a wasteful number, since it uses less digits than its factorization.

With its successor (14906) it forms an eRAP, since the sums of their prime factors are consecutive (287 and 288).

14905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 14905 is about 122.0860352375. The cubic root of 14905 is about 24.6099459639.

It can be divided in two parts, 14 and 905, that added together give a palindrome (919).

The spelling of 14905 in words is "fourteen thousand, nine hundred five".

Divisors: 1 5 11 55 271 1355 2981 14905