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85403975 = 525957901
BaseRepresentation
bin1010001011100…
…10100101000111
312221200222020012
411011302211013
5133330411400
612250300435
72054631116
oct505624507
9187628205
1085403975
11442322a8
122472771b
1314902cc7
14b4b1c7d
15776ed35
hex5172947

85403975 has 12 divisors (see below), whose sum is σ = 107697720. Its totient is φ = 67164000.

The previous prime is 85403959. The next prime is 85403999. The reversal of 85403975 is 57930458.

It is not a de Polignac number, because 85403975 - 24 = 85403959 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 27476 + ... + 30425.

It is an arithmetic number, because the mean of its divisors is an integer number (8974810).

Almost surely, 285403975 is an apocalyptic number.

85403975 is a deficient number, since it is larger than the sum of its proper divisors (22293745).

85403975 is a wasteful number, since it uses less digits than its factorization.

85403975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57970 (or 57965 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 85403975 is about 9241.4271084070. The cubic root of 85403975 is about 440.3784192842.

The spelling of 85403975 in words is "eighty-five million, four hundred three thousand, nine hundred seventy-five".

Divisors: 1 5 25 59 295 1475 57901 289505 1447525 3416159 17080795 85403975