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85924873 = 149576677
BaseRepresentation
bin1010001111100…
…01110000001001
312222200102202201
411013301300021
5133444043443
612305400201
72062230556
oct507616011
9188612681
1085924873
11445586a1
1224939061
1314a56128
14b5a9a2d
15782434d
hex51f1c09

85924873 has 4 divisors (see below), whose sum is σ = 86501700. Its totient is φ = 85348048.

The previous prime is 85924871. The next prime is 85924913. The reversal of 85924873 is 37842958.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3968064 + 81956809 = 1992^2 + 9053^2 .

It is a cyclic number.

It is not a de Polignac number, because 85924873 - 21 = 85924871 is a prime.

It is a super-2 number, since 2×859248732 = 14766167600132258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85924871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288190 + ... + 288487.

It is an arithmetic number, because the mean of its divisors is an integer number (21625425).

Almost surely, 285924873 is an apocalyptic number.

It is an amenable number.

85924873 is a deficient number, since it is larger than the sum of its proper divisors (576827).

85924873 is a wasteful number, since it uses less digits than its factorization.

85924873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576826.

The product of its digits is 483840, while the sum is 46.

The square root of 85924873 is about 9269.5670341176. The cubic root of 85924873 is about 441.2719274227.

The spelling of 85924873 in words is "eighty-five million, nine hundred twenty-four thousand, eight hundred seventy-three".

Divisors: 1 149 576677 85924873