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80187712 = 2611113903
BaseRepresentation
bin1001100011110…
…01000101000000
312120212221212021
410301321011000
5131012001322
611542411224
71662404263
oct461710500
9176787767
1080187712
114129a240
1222a30b14
13137c7967
14a914cda
15708e4c7
hex4c79140

80187712 has 28 divisors (see below), whose sum is σ = 173589696. Its totient is φ = 36448640.

The previous prime is 80187671. The next prime is 80187719. The reversal of 80187712 is 21778108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80187719) 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, 56248 + ... + 57655.

It is an arithmetic number, because the mean of its divisors is an integer number (6199632).

Almost surely, 280187712 is an apocalyptic number.

It is an amenable number.

80187712 is an abundant number, since it is smaller than the sum of its proper divisors (93401984).

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

80187712 is a wasteful number, since it uses less digits than its factorization.

80187712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113926 (or 113916 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 80187712 is about 8954.7591815749. The cubic root of 80187712 is about 431.2236857990.

The spelling of 80187712 in words is "eighty million, one hundred eighty-seven thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 113903 227806 455612 911224 1252933 1822448 2505866 3644896 5011732 7289792 10023464 20046928 40093856 80187712