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14491387 = 294311621
BaseRepresentation
bin110111010001…
…111011111011
31000021020110001
4313101323323
512202211022
61234333431
7234113641
oct67217373
930236401
1014491387
1181a8659
124a2a277
133004cb1
141cd3191
151413b27
hexdd1efb

14491387 has 8 divisors (see below), whose sum is σ = 15341040. Its totient is φ = 13665120.

The previous prime is 14491339. The next prime is 14491391. The reversal of 14491387 is 78319441.

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 14491387 - 211 = 14489339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14491307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4564 + ... + 7057.

It is an arithmetic number, because the mean of its divisors is an integer number (1917630).

Almost surely, 214491387 is an apocalyptic number.

14491387 is a deficient number, since it is larger than the sum of its proper divisors (849653).

14491387 is a wasteful number, since it uses less digits than its factorization.

14491387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11693.

The product of its digits is 24192, while the sum is 37.

The square root of 14491387 is about 3806.7554426309. The cubic root of 14491387 is about 243.8016562009.

It can be divided in two parts, 14491 and 387, that added together give a triangular number (14878 = T172).

The spelling of 14491387 in words is "fourteen million, four hundred ninety-one thousand, three hundred eighty-seven".

Divisors: 1 29 43 1247 11621 337009 499703 14491387