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489765132 = 223213604587
BaseRepresentation
bin11101001100010…
…011100100001100
31021010120122110100
4131030103210030
52000334441012
6120333211100
715064635453
oct3514234414
91233518410
10489765132
1123150687a
12118030a90
137a61066c
144908db9a
152cee58dc
hex1d31390c

489765132 has 18 divisors (see below), whose sum is σ = 1238017508. Its totient is φ = 163255032.

The previous prime is 489765127. The next prime is 489765139. The reversal of 489765132 is 231567984.

489765132 is a `hidden beast` number, since 48 + 97 + 6 + 513 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (489765139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6802258 + ... + 6802329.

Almost surely, 2489765132 is an apocalyptic number.

It is an amenable number.

489765132 is an abundant number, since it is smaller than the sum of its proper divisors (748252376).

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

489765132 is a wasteful number, since it uses less digits than its factorization.

489765132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13604597 (or 13604592 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 489765132 is about 22130.6378579561. The cubic root of 489765132 is about 788.2475344716.

The spelling of 489765132 in words is "four hundred eighty-nine million, seven hundred sixty-five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 13604587 27209174 40813761 54418348 81627522 122441283 163255044 244882566 489765132