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85680486 = 2324760027
BaseRepresentation
bin1010001101101…
…10000101100110
312222020000112100
411012312011212
5133413233421
612300232530
72060162223
oct506660546
9188200470
1085680486
1144401021
122483b746
131499bb18
14b54494a
1577c6c26
hex51b6166

85680486 has 12 divisors (see below), whose sum is σ = 185641092. Its totient is φ = 28560156.

The previous prime is 85680473. The next prime is 85680487. The reversal of 85680486 is 68408658.

85680486 is a `hidden beast` number, since 8 + 568 + 0 + 4 + 86 = 666.

It is a super-2 number, since 2×856804862 = 14682291362392392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85680487) 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 5 ways as a sum of consecutive naturals, for example, 2379996 + ... + 2380031.

It is an arithmetic number, because the mean of its divisors is an integer number (15470091).

Almost surely, 285680486 is an apocalyptic number.

85680486 is an abundant number, since it is smaller than the sum of its proper divisors (99960606).

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

85680486 is a wasteful number, since it uses less digits than its factorization.

85680486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760035 (or 4760032 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 85680486 is about 9256.3754245385. The cubic root of 85680486 is about 440.8531758592.

The spelling of 85680486 in words is "eighty-five million, six hundred eighty thousand, four hundred eighty-six".

Divisors: 1 2 3 6 9 18 4760027 9520054 14280081 28560162 42840243 85680486