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85312295 = 5179199479
BaseRepresentation
bin1010001010111…
…00001100100111
312221112022110122
411011130030213
5133314443140
612244312155
72054066615
oct505341447
9187468418
1085312295
114417a432
12246a265b
13148a0363
14b48a6b5
157752ab5
hex515c327

85312295 has 16 divisors (see below), whose sum is σ = 103680000. Its totient is φ = 67386528.

The previous prime is 85312259. The next prime is 85312319. The reversal of 85312295 is 59221358.

85312295 = 2502 + 2512 + ... + 6472.

It is a cyclic number.

It is not a de Polignac number, because 85312295 - 26 = 85312231 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 177866 + ... + 178344.

It is an arithmetic number, because the mean of its divisors is an integer number (6480000).

Almost surely, 285312295 is an apocalyptic number.

85312295 is a deficient number, since it is larger than the sum of its proper divisors (18367705).

85312295 is a wasteful number, since it uses less digits than its factorization.

85312295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its digits is 21600, while the sum is 35.

The square root of 85312295 is about 9236.4655036437. The cubic root of 85312295 is about 440.2207827923.

The spelling of 85312295 in words is "eighty-five million, three hundred twelve thousand, two hundred ninety-five".

Divisors: 1 5 179 199 479 895 995 2395 35621 85741 95321 178105 428705 476605 17062459 85312295