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14870891 = 75936007
BaseRepresentation
bin111000101110…
…100101101011
31000222112000202
4320232211223
512301332031
61250422415
7240254240
oct70564553
930875022
1014870891
1184377a2
124b91a0b
133108959
141d915c7
15148b2cb
hexe2e96b

14870891 has 8 divisors (see below), whose sum is σ = 17283840. Its totient is φ = 12530088.

The previous prime is 14870887. The next prime is 14870909. The reversal of 14870891 is 19807841.

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 14870891 - 22 = 14870887 is a prime.

It is a super-2 number, since 2×148708912 = 442286798267762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14870491) 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, 17591 + ... + 18416.

It is an arithmetic number, because the mean of its divisors is an integer number (2160480).

Almost surely, 214870891 is an apocalyptic number.

14870891 is a deficient number, since it is larger than the sum of its proper divisors (2412949).

14870891 is an equidigital number, since it uses as much as digits as its factorization.

14870891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36073.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 14870891 is about 3856.2794245231. The cubic root of 14870891 is about 245.9115893987.

The spelling of 14870891 in words is "fourteen million, eight hundred seventy thousand, eight hundred ninety-one".

Divisors: 1 7 59 413 36007 252049 2124413 14870891