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14681387 = 717123373
BaseRepresentation
bin111000000000…
…010100101011
31000121220002002
4320000110223
512224301022
61242401215
7235534610
oct70002453
930556062
1014681387
118318386
124b0020b
133070616
141d42507
151450092
hexe0052b

14681387 has 8 divisors (see below), whose sum is σ = 17765856. Its totient is φ = 11843712.

The previous prime is 14681347. The next prime is 14681389. The reversal of 14681387 is 78318641.

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

It is a cyclic number.

It is not a de Polignac number, because 14681387 - 28 = 14681131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14681387.

It is not an unprimeable number, because it can be changed into a prime (14681389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61568 + ... + 61805.

It is an arithmetic number, because the mean of its divisors is an integer number (2220732).

Almost surely, 214681387 is an apocalyptic number.

14681387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

14681387 is a deficient number, since it is larger than the sum of its proper divisors (3084469).

14681387 is a wasteful number, since it uses less digits than its factorization.

14681387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123397.

The product of its digits is 32256, while the sum is 38.

The square root of 14681387 is about 3831.6298098851. The cubic root of 14681387 is about 244.8625468053.

The spelling of 14681387 in words is "fourteen million, six hundred eighty-one thousand, three hundred eighty-seven".

Divisors: 1 7 17 119 123373 863611 2097341 14681387