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80311392 = 253373271
BaseRepresentation
bin1001100100101…
…11010001100000
312121010020112000
410302113101200
5131024431032
611545204000
71663431000
oct462272140
9177106460
1080311392
1141374157
1222a90600
131383c045
14a948000
1570b5e7c
hex4c97460

80311392 has 192 divisors, whose sum is σ = 274176000. Its totient is φ = 22861440.

The previous prime is 80311379. The next prime is 80311459. The reversal of 80311392 is 29311308.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296217 + ... + 296487.

It is an arithmetic number, because the mean of its divisors is an integer number (1428000).

Almost surely, 280311392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80311392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137088000).

80311392 is an abundant number, since it is smaller than the sum of its proper divisors (193864608).

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

80311392 is a wasteful number, since it uses less digits than its factorization.

80311392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 80311392 is about 8961.6623457928. The cubic root of 80311392 is about 431.4452756465.

The spelling of 80311392 in words is "eighty million, three hundred eleven thousand, three hundred ninety-two".