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13428731376 = 243293255079
BaseRepresentation
bin11001000000110101…
…00010110111110000
31021122212112020100100
430200122202313300
5210000223401001
610100304152400
7653530222224
oct144032426760
937585466310
1013428731376
115771194705
122729308700
1313601629c8
1491568c784
15538ddd586
hex3206a2df0

13428731376 has 30 divisors (see below), whose sum is σ = 37581797240. Its totient is φ = 4476243744.

The previous prime is 13428731363. The next prime is 13428731377. The reversal of 13428731376 is 67313782431.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13428731377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46627396 + ... + 46627683.

Almost surely, 213428731376 is an apocalyptic number.

13428731376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13428731376 is an abundant number, since it is smaller than the sum of its proper divisors (24153065864).

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

13428731376 is a wasteful number, since it uses less digits than its factorization.

13428731376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93255093 (or 93255084 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 13428731376 in words is "thirteen billion, four hundred twenty-eight million, seven hundred thirty-one thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 93255079 186510158 279765237 373020316 559530474 746040632 839295711 1119060948 1492081264 1678591422 2238121896 3357182844 4476243792 6714365688 13428731376