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14869891 = 234191543
BaseRepresentation
bin111000101110…
…010110000011
31000222110122201
4320232112003
512301314031
61250414031
7240251311
oct70562603
930873581
1014869891
118436a73
124b91317
13310836a
141d910b1
15148ad61
hexe2e583

14869891 has 8 divisors (see below), whose sum is σ = 15563520. Its totient is φ = 14180232.

The previous prime is 14869871. The next prime is 14869901. The reversal of 14869891 is 19896841.

14869891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 14869891 - 25 = 14869859 is a prime.

It is a super-2 number, since 2×148698912 = 442227316703762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14869831) 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, 8866 + ... + 10408.

It is an arithmetic number, because the mean of its divisors is an integer number (1945440).

Almost surely, 214869891 is an apocalyptic number.

14869891 is a deficient number, since it is larger than the sum of its proper divisors (693629).

14869891 is a wasteful number, since it uses less digits than its factorization.

14869891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985.

The product of its digits is 124416, while the sum is 46.

The square root of 14869891 is about 3856.1497636892. The cubic root of 14869891 is about 245.9060771287.

The spelling of 14869891 in words is "fourteen million, eight hundred sixty-nine thousand, eight hundred ninety-one".

Divisors: 1 23 419 1543 9637 35489 646517 14869891