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85297330 = 25172511999
BaseRepresentation
bin1010001010110…
…00100010110010
312221111112221101
411011120202302
5133314003310
612244115014
72054005156
oct505304262
9187445841
1085297330
114416a168
1224695a6a
13148965c1
14b485066
15774d43a
hex51588b2

85297330 has 32 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 31968000.

The previous prime is 85297301. The next prime is 85297349. The reversal of 85297330 is 3379258.

It is a self number, because there is not a number n which added to its sum of digits gives 85297330.

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 15 ways as a sum of consecutive naturals, for example, 41671 + ... + 43669.

It is an arithmetic number, because the mean of its divisors is an integer number (5103000).

Almost surely, 285297330 is an apocalyptic number.

85297330 is a deficient number, since it is larger than the sum of its proper divisors (77998670).

85297330 is a wasteful number, since it uses less digits than its factorization.

85297330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 85297330 is about 9235.6553638602. The cubic root of 85297330 is about 440.1950409409.

The spelling of 85297330 in words is "eighty-five million, two hundred ninety-seven thousand, three hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 251 502 1255 1999 2510 3998 4267 8534 9995 19990 21335 33983 42670 67966 169915 339830 501749 1003498 2508745 5017490 8529733 17059466 42648665 85297330