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80712460 = 2254035623
BaseRepresentation
bin1001100111110…
…01001100001100
312121212121200101
410303321030030
5131130244320
612001540444
72000021203
oct463711414
9177777611
1080712460
1141618514
1223044724
131394c76a
14aa1023a
157144c0a
hex4cf930c

80712460 has 12 divisors (see below), whose sum is σ = 169496208. Its totient is φ = 32284976.

The previous prime is 80712431. The next prime is 80712479. The reversal of 80712460 is 6421708.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2017792 + ... + 2017831.

It is an arithmetic number, because the mean of its divisors is an integer number (14124684).

Almost surely, 280712460 is an apocalyptic number.

It is an amenable number.

80712460 is an abundant number, since it is smaller than the sum of its proper divisors (88783748).

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

80712460 is a wasteful number, since it uses less digits than its factorization.

80712460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035632 (or 4035630 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 80712460 is about 8984.0113535102. The cubic root of 80712460 is about 432.1622832798.

The spelling of 80712460 in words is "eighty million, seven hundred twelve thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 4035623 8071246 16142492 20178115 40356230 80712460