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14640248 = 237261433
BaseRepresentation
bin110111110110…
…010001111000
31000112210122102
4313312101320
512221441443
61241442532
7235303640
oct67662170
930483572
1014640248
11829a487
124aa0448
13305798c
141d31520
151442cb8
hexdf6478

14640248 has 16 divisors (see below), whose sum is σ = 31372080. Its totient is φ = 6274368.

The previous prime is 14640229. The next prime is 14640251. The reversal of 14640248 is 84204641.

It is a self number, because there is not a number n which added to its sum of digits gives 14640248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130661 + ... + 130772.

It is an arithmetic number, because the mean of its divisors is an integer number (1960755).

Almost surely, 214640248 is an apocalyptic number.

It is an amenable number.

14640248 is an abundant number, since it is smaller than the sum of its proper divisors (16731832).

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

14640248 is a wasteful number, since it uses less digits than its factorization.

14640248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261446 (or 261442 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 14640248 is about 3826.2577017237. The cubic root of 14640248 is about 244.6336214786.

Adding to 14640248 its reverse (84204641), we get a palindrome (98844889).

The spelling of 14640248 in words is "fourteen million, six hundred forty thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 261433 522866 1045732 1830031 2091464 3660062 7320124 14640248