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14907689 = 88316883
BaseRepresentation
bin111000110111…
…100100101001
31001001101111122
4320313210221
512304021224
61251305025
7240466436
oct70674451
931041448
1014907689
118462405
124bab175
13311c624
141da0b8d
15149715e
hexe37929

14907689 has 4 divisors (see below), whose sum is σ = 14925456. Its totient is φ = 14889924.

The previous prime is 14907679. The next prime is 14907709. The reversal of 14907689 is 98670941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98670941 = 175804173.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14907689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14907619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7559 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (3731364).

Almost surely, 214907689 is an apocalyptic number.

It is an amenable number.

14907689 is a deficient number, since it is larger than the sum of its proper divisors (17767).

14907689 is an equidigital number, since it uses as much as digits as its factorization.

14907689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17766.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 14907689 is about 3861.0476557536. The cubic root of 14907689 is about 246.1142582895.

The spelling of 14907689 in words is "fourteen million, nine hundred seven thousand, six hundred eighty-nine".

Divisors: 1 883 16883 14907689