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14049991 = 831091553
BaseRepresentation
bin110101100110…
…001011000111
3222102210222001
4311212023013
512044044431
61221050131
7230265034
oct65461307
928383861
1014049991
117a26a6a
124856947
132bac107
141c1a38b
151377e61
hexd662c7

14049991 has 8 divisors (see below), whose sum is σ = 14358960. Its totient is φ = 13744512.

The previous prime is 14049989. The next prime is 14050013. The reversal of 14049991 is 19994041.

14049991 = T3059 + T3060 + T3061.

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 14049991 - 21 = 14049989 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 14049991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14049901) 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 7 ways as a sum of consecutive naturals, for example, 8271 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (1794870).

Almost surely, 214049991 is an apocalyptic number.

14049991 is the 3061-st centered triangular number.

14049991 is a deficient number, since it is larger than the sum of its proper divisors (308969).

14049991 is a wasteful number, since it uses less digits than its factorization.

14049991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 14049991 is about 3748.3317622644. The cubic root of 14049991 is about 241.3007556950.

The spelling of 14049991 in words is "fourteen million, forty-nine thousand, nine hundred ninety-one".

Divisors: 1 83 109 1553 9047 128899 169277 14049991