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14865140 = 2251743721
BaseRepresentation
bin111000101101…
…001011110100
31000222020010202
4320231023310
512301141030
61250340032
7240231413
oct70551364
930866122
1014865140
118433444
124b8a618
133106154
141d8d47a
151489745
hexe2d2f4

14865140 has 24 divisors (see below), whose sum is σ = 33053832. Its totient is φ = 5596160.

The previous prime is 14865127. The next prime is 14865173. The reversal of 14865140 is 4156841.

It can be written as a sum of positive squares in 4 ways, for example, as 4276624 + 10588516 = 2068^2 + 3254^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21521 + ... + 22200.

It is an arithmetic number, because the mean of its divisors is an integer number (1377243).

Almost surely, 214865140 is an apocalyptic number.

14865140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14865140 is an abundant number, since it is smaller than the sum of its proper divisors (18188692).

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

14865140 is a wasteful number, since it uses less digits than its factorization.

14865140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43747 (or 43745 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 14865140 is about 3855.5336854967. The cubic root of 14865140 is about 245.8798849569.

The spelling of 14865140 in words is "fourteen million, eight hundred sixty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 43721 87442 174884 218605 437210 743257 874420 1486514 2973028 3716285 7432570 14865140