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132385728 = 263689509
BaseRepresentation
bin1111110010000…
…00101111000000
3100020002220002010
413321000233000
5232342320403
621045252520
73165155136
oct771005700
9306086063
10132385728
11688013a2
1238404140
1321572667
1413821756
15b950603
hex7e40bc0

132385728 has 28 divisors (see below), whose sum is σ = 350271080. Its totient is φ = 44128512.

The previous prime is 132385727. The next prime is 132385733. The reversal of 132385728 is 827583231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132385727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344563 + ... + 344946.

Almost surely, 2132385728 is an apocalyptic number.

It is an amenable number.

132385728 is an abundant number, since it is smaller than the sum of its proper divisors (217885352).

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

132385728 is an equidigital number, since it uses as much as digits as its factorization.

132385728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689524 (or 689514 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 132385728 is about 11505.8997040649. The cubic root of 132385728 is about 509.6598115792.

The spelling of 132385728 in words is "one hundred thirty-two million, three hundred eighty-five thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 689509 1379018 2068527 2758036 4137054 5516072 8274108 11032144 16548216 22064288 33096432 44128576 66192864 132385728