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180532 = 22112373
BaseRepresentation
bin101100000100110100
3100011122101
4230010310
521234112
63511444
71351222
oct540464
9304571
10180532
11113700
1288584
1364231
1449b12
1538757
hex2c134

180532 has 18 divisors (see below), whose sum is σ = 348194. Its totient is φ = 81840.

The previous prime is 180511. The next prime is 180533. The reversal of 180532 is 235081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 156816 + 23716 = 396^2 + 154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 298 + ... + 670.

2180532 is an apocalyptic number.

It is an amenable number.

180532 is a deficient number, since it is larger than the sum of its proper divisors (167662).

180532 is a wasteful number, since it uses less digits than its factorization.

180532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 180532 is about 424.8905741482. The cubic root of 180532 is about 56.5177327063.

The spelling of 180532 in words is "one hundred eighty thousand, five hundred thirty-two".