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85893405 = 35132311093
BaseRepresentation
bin1010001111010…
…10000100011101
312222121211121020
411013222010131
5133442042110
612304554353
72062040043
oct507520435
9188554536
1085893405
1144536a94
12249229b9
1314a44a00
14b59c393
157819d70
hex51ea11d

85893405 has 48 divisors (see below), whose sum is σ = 153755136. Its totient is φ = 40884480.

The previous prime is 85893377. The next prime is 85893407. The reversal of 85893405 is 50439858.

It is not a de Polignac number, because 85893405 - 26 = 85893341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85893407) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 78039 + ... + 79131.

It is an arithmetic number, because the mean of its divisors is an integer number (3203232).

Almost surely, 285893405 is an apocalyptic number.

It is an amenable number.

85893405 is a deficient number, since it is larger than the sum of its proper divisors (67861731).

85893405 is a wasteful number, since it uses less digits than its factorization.

85893405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 85893405 is about 9267.8694962758. The cubic root of 85893405 is about 441.2180522951.

The spelling of 85893405 in words is "eighty-five million, eight hundred ninety-three thousand, four hundred five".

Divisors: 1 3 5 13 15 31 39 65 93 155 169 195 403 465 507 845 1093 1209 2015 2535 3279 5239 5465 6045 14209 15717 16395 26195 33883 42627 71045 78585 101649 169415 184717 213135 440479 508245 554151 923585 1321437 2202395 2770755 5726227 6607185 17178681 28631135 85893405