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132521748 = 22311043479
BaseRepresentation
bin1111110011000…
…01111100010100
3100020100210122220
413321201330110
5232411143443
621052222340
73166262532
oct771417424
9306323586
10132521748
1168894607
123846a9b0
13215bc548
1413859152
15b97aa83
hex7e61f14

132521748 has 12 divisors (see below), whose sum is σ = 309217440. Its totient is φ = 44173912.

The previous prime is 132521731. The next prime is 132521759. The reversal of 132521748 is 847125231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1325217483 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5521728 + ... + 5521751.

It is an arithmetic number, because the mean of its divisors is an integer number (25768120).

Almost surely, 2132521748 is an apocalyptic number.

It is an amenable number.

132521748 is an abundant number, since it is smaller than the sum of its proper divisors (176695692).

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

132521748 is a wasteful number, since it uses less digits than its factorization.

132521748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11043486 (or 11043484 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 132521748 is about 11511.8090672144. The cubic root of 132521748 is about 509.8343021879.

Adding to 132521748 its reverse (847125231), we get a palindrome (979646979).

The spelling of 132521748 in words is "one hundred thirty-two million, five hundred twenty-one thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 11043479 22086958 33130437 44173916 66260874 132521748