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80687376 = 243271119383
BaseRepresentation
bin1001100111100…
…11000100010000
312121211100021100
410303303010100
5131123444001
612001224400
71666555110
oct463630420
9177740240
1080687376
1141600690
1223032100
1313941213
14aa05040
15713c586
hex4cf3110

80687376 has 240 divisors, whose sum is σ = 297123840. Its totient is φ = 19802880.

The previous prime is 80687339. The next prime is 80687401. The reversal of 80687376 is 67378608.

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 47 ways as a sum of consecutive naturals, for example, 210481 + ... + 210863.

It is an arithmetic number, because the mean of its divisors is an integer number (1238016).

Almost surely, 280687376 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 80687376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148561920).

80687376 is an abundant number, since it is smaller than the sum of its proper divisors (216436464).

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

80687376 is a wasteful number, since it uses less digits than its factorization.

80687376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 80687376 is about 8982.6152093920. The cubic root of 80687376 is about 432.1175091855.

The spelling of 80687376 in words is "eighty million, six hundred eighty-seven thousand, three hundred seventy-six".