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14989 = 131153
BaseRepresentation
bin11101010001101
3202120011
43222031
5434424
6153221
761462
oct35215
922504
1014989
1110297
128811
136a90
145669
154694
hex3a8d

14989 has 4 divisors (see below), whose sum is σ = 16156. Its totient is φ = 13824.

The previous prime is 14983. The next prime is 15013. The reversal of 14989 is 98941.

14989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98941 = 163607.

It can be written as a sum of positive squares in 2 ways, for example, as 6889 + 8100 = 83^2 + 90^2 .

It is a 5-Lehmer number, since φ(14989) divides (14989-1)5.

It is a cyclic number.

It is not a de Polignac number, because 14989 - 25 = 14957 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 14989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564 + ... + 589.

It is an arithmetic number, because the mean of its divisors is an integer number (4039).

214989 is an apocalyptic number.

It is an amenable number.

14989 is a deficient number, since it is larger than the sum of its proper divisors (1167).

14989 is a wasteful number, since it uses less digits than its factorization.

14989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its digits is 2592, while the sum is 31.

The square root of 14989 is about 122.4295715912. The cubic root of 14989 is about 24.6560907507.

The spelling of 14989 in words is "fourteen thousand, nine hundred eighty-nine".

Divisors: 1 13 1153 14989