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13732887438 = 232762938191
BaseRepresentation
bin11001100101000101…
…10011101110001110
31022110001211222000200
430302202303232032
5211111104344223
610150411234330
7664212421464
oct146242635616
938401758020
1013732887438
115907947656
1227b31489a6
1313ab1873ca
14943c24834
1555596da43
hex3328b3b8e

13732887438 has 12 divisors (see below), whose sum is σ = 29754589488. Its totient is φ = 4577629140.

The previous prime is 13732887397. The next prime is 13732887457. The reversal of 13732887438 is 83478823731.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 381469078 + ... + 381469113.

It is an arithmetic number, because the mean of its divisors is an integer number (2479549124).

Almost surely, 213732887438 is an apocalyptic number.

13732887438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13732887438 is an abundant number, since it is smaller than the sum of its proper divisors (16021702050).

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

13732887438 is a wasteful number, since it uses less digits than its factorization.

13732887438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762938199 (or 762938196 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 13732887438 in words is "thirteen billion, seven hundred thirty-two million, eight hundred eighty-seven thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 762938191 1525876382 2288814573 4577629146 6866443719 13732887438