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80508568 = 2372593
BaseRepresentation
bin1001100110001…
…11011010011000
312121111020222211
410303013122120
5131102233233
611553324504
71665211600
oct463073230
9177436884
1080508568
1141499308
1222b66734
13138aaa0a
14a999c00
1571045cd
hex4cc7698

80508568 has 48 divisors (see below), whose sum is σ = 178626600. Its totient is φ = 33918864.

The previous prime is 80508521. The next prime is 80508569. The reversal of 80508568 is 86580508.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a self number, because there is not a number n which added to its sum of digits gives 80508568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80508569) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1364523 + ... + 1364581.

Almost surely, 280508568 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 80508568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89313300).

80508568 is an abundant number, since it is smaller than the sum of its proper divisors (98118032).

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

80508568 is an frugal number, since it uses more digits than its factorization.

80508568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 80508568 is about 8972.6566857314. The cubic root of 80508568 is about 431.7980737827.

The spelling of 80508568 in words is "eighty million, five hundred eight thousand, five hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 59 98 118 196 236 392 413 472 826 1652 2891 3304 3481 5782 6962 11564 13924 23128 24367 27848 48734 97468 170569 194936 205379 341138 410758 682276 821516 1364552 1437653 1643032 2875306 5750612 10063571 11501224 20127142 40254284 80508568