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80509996 = 2276147137
BaseRepresentation
bin1001100110001…
…11110000101100
312121111022221201
410303013300230
5131102304441
611553335244
71665216010
oct463076054
9177438851
1080509996
114149a396
1222b67524
13138ab568
14a99a540
157104c31
hex4cc7c2c

80509996 has 24 divisors (see below), whose sum is σ = 163663136. Its totient is φ = 33937920.

The previous prime is 80509969. The next prime is 80510041. The reversal of 80509996 is 69990508.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 21861 + ... + 25276.

Almost surely, 280509996 is an apocalyptic number.

It is an amenable number.

80509996 is an abundant number, since it is smaller than the sum of its proper divisors (83153140).

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

80509996 is a wasteful number, since it uses less digits than its factorization.

80509996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47209 (or 47207 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 80509996 is about 8972.7362604726. The cubic root of 80509996 is about 431.8006267367.

The spelling of 80509996 in words is "eighty million, five hundred nine thousand, nine hundred ninety-six".

Divisors: 1 2 4 7 14 28 61 122 244 427 854 1708 47137 94274 188548 329959 659918 1319836 2875357 5750714 11501428 20127499 40254998 80509996