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14878940 = 225743947
BaseRepresentation
bin111000110000…
…100011011100
31000222221001212
4320300203130
512302111230
61250523552
7240316556
oct70604334
930887055
1014878940
11844284a
124b965b8
13310c50b
141d944d6
15148d895
hexe308dc

14878940 has 12 divisors (see below), whose sum is σ = 31245816. Its totient is φ = 5951568.

The previous prime is 14878909. The next prime is 14878987. The reversal of 14878940 is 4987841.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371954 + ... + 371993.

It is an arithmetic number, because the mean of its divisors is an integer number (2603818).

Almost surely, 214878940 is an apocalyptic number.

14878940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14878940 is an abundant number, since it is smaller than the sum of its proper divisors (16366876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14878940 is a wasteful number, since it uses less digits than its factorization.

14878940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743956 (or 743954 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 14878940 is about 3857.3229058506. The cubic root of 14878940 is about 245.9559486636.

The spelling of 14878940 in words is "fourteen million, eight hundred seventy-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 743947 1487894 2975788 3719735 7439470 14878940