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82512804 = 22311256827
BaseRepresentation
bin1001110101100…
…00101110100100
312202021002021210
410322300232210
5132110402204
612104311420
72021230053
oct472605644
9182232253
1082512804
1142638100
1223772570
131413005a
14ad5c39a
15739d389
hex4eb0ba4

82512804 has 36 divisors (see below), whose sum is σ = 211627472. Its totient is φ = 25003440.

The previous prime is 82512797. The next prime is 82512811. The reversal of 82512804 is 40821528.

It is an interprime number because it is at equal distance from previous prime (82512797) and next prime (82512811).

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 11 ways as a sum of consecutive naturals, for example, 26962 + ... + 29865.

Almost surely, 282512804 is an apocalyptic number.

It is an amenable number.

82512804 is an abundant number, since it is smaller than the sum of its proper divisors (129114668).

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

82512804 is a wasteful number, since it uses less digits than its factorization.

82512804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56856 (or 56843 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 82512804 is about 9083.6558719494. The cubic root of 82512804 is about 435.3519044339.

The spelling of 82512804 in words is "eighty-two million, five hundred twelve thousand, eight hundred four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 56827 113654 170481 227308 340962 625097 681924 1250194 1875291 2500388 3750582 6876067 7501164 13752134 20628201 27504268 41256402 82512804