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85928507 = 721992297
BaseRepresentation
bin1010001111100…
…10101000111011
312222200121202022
411013302220323
5133444203012
612305425055
72062244300
oct507625073
9188617668
1085928507
11445603a5
122493b18b
1314a57992
14b5ab0a7
157825472
hex51f2a3b

85928507 has 12 divisors (see below), whose sum is σ = 105219720. Its totient is φ = 69775776.

The previous prime is 85928503. The next prime is 85928509. The reversal of 85928507 is 70582958.

It is not a de Polignac number, because 85928507 - 22 = 85928503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85928503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45218 + ... + 47079.

It is an arithmetic number, because the mean of its divisors is an integer number (8768310).

Almost surely, 285928507 is an apocalyptic number.

85928507 is a deficient number, since it is larger than the sum of its proper divisors (19291213).

85928507 is a wasteful number, since it uses less digits than its factorization.

85928507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92330 (or 92323 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 85928507 is about 9269.7630498303. The cubic root of 85928507 is about 441.2781482042.

The spelling of 85928507 in words is "eighty-five million, nine hundred twenty-eight thousand, five hundred seven".

Divisors: 1 7 19 49 133 931 92297 646079 1753643 4522553 12275501 85928507