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85325805 = 3105172
BaseRepresentation
bin1010001010111…
…11011111101101
312221120000000000
411011133133231
5133320411210
612244454513
72054154165
oct505373755
9187500000
1085325805
11441895a4
12246aa439
13148a6556
14b4915a5
157756ac0
hex515f7ed

85325805 has 66 divisors (see below), whose sum is σ = 163151466. Its totient is φ = 42830208.

The previous prime is 85325777. The next prime is 85325833. The reversal of 85325805 is 50852358.

It is an interprime number because it is at equal distance from previous prime (85325777) and next prime (85325833).

It can be written as a sum of positive squares in 3 ways, for example, as 28579716 + 56746089 = 5346^2 + 7533^2 .

It is not a de Polignac number, because 85325805 - 27 = 85325677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85325805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 65 ways as a sum of consecutive naturals, for example, 5019157 + ... + 5019173.

Almost surely, 285325805 is an apocalyptic number.

85325805 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85325805 is a deficient number, since it is larger than the sum of its proper divisors (77825661).

85325805 is an frugal number, since it uses more digits than its factorization.

85325805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 85325805 is about 9237.1968150516. The cubic root of 85325805 is about 440.2440192589.

The spelling of 85325805 in words is "eighty-five million, three hundred twenty-five thousand, eight hundred five".

Divisors: 1 3 5 9 15 17 27 45 51 81 85 135 153 243 255 289 405 459 729 765 867 1215 1377 1445 2187 2295 2601 3645 4131 4335 6561 6885 7803 10935 12393 13005 19683 20655 23409 32805 37179 39015 59049 61965 70227 98415 111537 117045 185895 210681 295245 334611 351135 557685 632043 1003833 1053405 1673055 1896129 3160215 5019165 5688387 9480645 17065161 28441935 85325805