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80545132 = 2261330103
BaseRepresentation
bin1001100110100…
…00010101101100
312121120010011001
410303100111230
5131104421012
611554210044
71665423313
oct463202554
9177503131
1080545132
1141513828
1222b83924
13138c1555
14a9a927a
157110357
hex4cd056c

80545132 has 12 divisors (see below), whose sum is σ = 143265136. Its totient is φ = 39612240.

The previous prime is 80545117. The next prime is 80545139. The reversal of 80545132 is 23154508.

It is a self number, because there is not a number n which added to its sum of digits gives 80545132.

It is not an unprimeable number, because it can be changed into a prime (80545139) 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, 164808 + ... + 165295.

Almost surely, 280545132 is an apocalyptic number.

It is an amenable number.

80545132 is a deficient number, since it is larger than the sum of its proper divisors (62720004).

80545132 is a wasteful number, since it uses less digits than its factorization.

80545132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330168 (or 330166 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 80545132 is about 8974.6939780697. The cubic root of 80545132 is about 431.8634327692.

The spelling of 80545132 in words is "eighty million, five hundred forty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 61 122 244 330103 660206 1320412 20136283 40272566 80545132