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14311687 = 131100899
BaseRepresentation
bin110110100110…
…000100000111
3222221002221111
4312212010013
512130433222
61230425451
7232435015
oct66460407
928832844
1014311687
118095645
124962287
132c71270
141c878b5
1513ca777
hexda6107

14311687 has 4 divisors (see below), whose sum is σ = 15412600. Its totient is φ = 13210776.

The previous prime is 14311667. The next prime is 14311691. The reversal of 14311687 is 78611341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14311687 - 215 = 14278919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14311657) 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, 550437 + ... + 550462.

It is an arithmetic number, because the mean of its divisors is an integer number (3853150).

Almost surely, 214311687 is an apocalyptic number.

14311687 is a deficient number, since it is larger than the sum of its proper divisors (1100913).

14311687 is a wasteful number, since it uses less digits than its factorization.

14311687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100912.

The product of its digits is 4032, while the sum is 31.

The square root of 14311687 is about 3783.0790369750. The cubic root of 14311687 is about 242.7897100802.

The spelling of 14311687 in words is "fourteen million, three hundred eleven thousand, six hundred eighty-seven".

Divisors: 1 13 1100899 14311687