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14031378 = 232779521
BaseRepresentation
bin110101100001…
…101000010010
3222101212102200
4311201220102
512043001003
61220424030
7230156544
oct65415022
928355380
1014031378
117a13a89
124848016
132ba37ba
141c13694
1513726a3
hexd61a12

14031378 has 12 divisors (see below), whose sum is σ = 30401358. Its totient is φ = 4677120.

The previous prime is 14031361. The next prime is 14031401. The reversal of 14031378 is 87313041.

It can be written as a sum of positive squares in only one way, i.e., 13638249 + 393129 = 3693^2 + 627^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 389743 + ... + 389778.

Almost surely, 214031378 is an apocalyptic number.

14031378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14031378 is an abundant number, since it is smaller than the sum of its proper divisors (16369980).

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

14031378 is a wasteful number, since it uses less digits than its factorization.

14031378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779529 (or 779526 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 14031378 is about 3745.8481015653. The cubic root of 14031378 is about 241.1941526432.

The spelling of 14031378 in words is "fourteen million, thirty-one thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 9 18 779521 1559042 2338563 4677126 7015689 14031378