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85004525 = 5217831907
BaseRepresentation
bin1010001000100…
…01000011101101
312220221200021202
411010101003231
5133230121100
612233535245
72051345414
oct504210355
9186850252
1085004525
1143a8a181
1224574525
13147c3248
14b40a47b
1576e17d5
hex51110ed

85004525 has 12 divisors (see below), whose sum is σ = 105520032. Its totient is φ = 67929840.

The previous prime is 85004519. The next prime is 85004567. The reversal of 85004525 is 52540058.

It is not a de Polignac number, because 85004525 - 24 = 85004509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43622 + ... + 45528.

It is an arithmetic number, because the mean of its divisors is an integer number (8793336).

Almost surely, 285004525 is an apocalyptic number.

It is an amenable number.

85004525 is a deficient number, since it is larger than the sum of its proper divisors (20515507).

85004525 is a wasteful number, since it uses less digits than its factorization.

85004525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 85004525 is about 9219.7898566074. The cubic root of 85004525 is about 439.6907692947.

The spelling of 85004525 in words is "eighty-five million, four thousand, five hundred twenty-five".

Divisors: 1 5 25 1783 1907 8915 9535 44575 47675 3400181 17000905 85004525