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85767284 = 2243498647
BaseRepresentation
bin1010001110010…
…11010001110100
312222101102121002
411013023101310
5133424023114
612302142432
72061003251
oct507132164
9188342532
1085767284
1144460259
1224881a18
13149cc495
14b568428
1577e27de
hex51cb474

85767284 has 12 divisors (see below), whose sum is σ = 153583584. Its totient is φ = 41886264.

The previous prime is 85767277. The next prime is 85767287. The reversal of 85767284 is 48276758.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85767287) 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 3 ways as a sum of consecutive naturals, for example, 249152 + ... + 249495.

It is an arithmetic number, because the mean of its divisors is an integer number (12798632).

Almost surely, 285767284 is an apocalyptic number.

It is an amenable number.

85767284 is a deficient number, since it is larger than the sum of its proper divisors (67816300).

85767284 is a wasteful number, since it uses less digits than its factorization.

85767284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498694 (or 498692 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 85767284 is about 9261.0627899826. The cubic root of 85767284 is about 441.0019933305.

The spelling of 85767284 in words is "eighty-five million, seven hundred sixty-seven thousand, two hundred eighty-four".

Divisors: 1 2 4 43 86 172 498647 997294 1994588 21441821 42883642 85767284