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14289678 = 2321379773
BaseRepresentation
bin110110100000…
…101100001110
3222212222202100
4312200230032
512124232203
61230135530
7232313604
oct66405416
928788670
1014289678
118080057
1249515a6
132c64240
141c7d874
1513c3ea3
hexda0b0e

14289678 has 48 divisors (see below), whose sum is σ = 33808320. Its totient is φ = 4335552.

The previous prime is 14289661. The next prime is 14289679. The reversal of 14289678 is 87698241.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14289679) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 18100 + ... + 18872.

It is an arithmetic number, because the mean of its divisors is an integer number (704340).

Almost surely, 214289678 is an apocalyptic number.

14289678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14289678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16904160).

14289678 is an abundant number, since it is smaller than the sum of its proper divisors (19518642).

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

14289678 is a wasteful number, since it uses less digits than its factorization.

14289678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 870 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 14289678 is about 3780.1690438392. The cubic root of 14289678 is about 242.6651894642.

The spelling of 14289678 in words is "fourteen million, two hundred eighty-nine thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 9 13 18 26 39 78 79 117 158 234 237 474 711 773 1027 1422 1546 2054 2319 3081 4638 6162 6957 9243 10049 13914 18486 20098 30147 60294 61067 90441 122134 180882 183201 366402 549603 793871 1099206 1587742 2381613 4763226 7144839 14289678