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13749327655 = 57412233693
BaseRepresentation
bin11001100111000011…
…00001011100100111
31022111012210012202121
430303201201130213
5211124311441110
610152155450411
7664502233240
oct146341413447
938435705677
1013749327655
115916156408
1227b8756a07
1313b16c244b
149460a3cc7
15557119cda
hex333861727

13749327655 has 24 divisors (see below), whose sum is σ = 19327428576. Its totient is φ = 9198117120.

The previous prime is 13749327653. The next prime is 13749327661. The reversal of 13749327655 is 55672394731.

13749327655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13749327655 - 21 = 13749327653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749327653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58012 + ... + 175681.

It is an arithmetic number, because the mean of its divisors is an integer number (805309524).

Almost surely, 213749327655 is an apocalyptic number.

13749327655 is a deficient number, since it is larger than the sum of its proper divisors (5578100921).

13749327655 is an equidigital number, since it uses as much as digits as its factorization.

13749327655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233787 (or 233746 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 52.

The spelling of 13749327655 in words is "thirteen billion, seven hundred forty-nine million, three hundred twenty-seven thousand, six hundred fifty-five".

Divisors: 1 5 7 35 41 205 287 1435 1681 8405 11767 58835 233693 1168465 1635851 8179255 9581413 47907065 67069891 335349455 392837933 1964189665 2749865531 13749327655