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13868416 = 27108347
BaseRepresentation
bin110100111001…
…110110000000
3222002120220001
4310321312000
512022242131
61213125344
7225610462
oct64716600
928076801
1013868416
117912601
124789854
132b47583
141bb0132
15133e261
hexd39d80

13868416 has 16 divisors (see below), whose sum is σ = 27628740. Its totient is φ = 6934144.

The previous prime is 13868389. The next prime is 13868417. The reversal of 13868416 is 61486831.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) 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 (13868417) 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 as a sum of consecutive naturals, namely, 54046 + ... + 54301.

Almost surely, 213868416 is an apocalyptic number.

13868416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13868416 is a deficient number, since it is larger than the sum of its proper divisors (13760324).

13868416 is an equidigital number, since it uses as much as digits as its factorization.

13868416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108361 (or 108349 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 13868416 is about 3724.0322232763. The cubic root of 13868416 is about 240.2567622439.

The spelling of 13868416 in words is "thirteen million, eight hundred sixty-eight thousand, four hundred sixteen".

Divisors: 1 2 4 8 16 32 64 128 108347 216694 433388 866776 1733552 3467104 6934208 13868416