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65938086 = 23241471901
BaseRepresentation
bin1111101110001…
…0001010100110
311121002000001100
43323202022212
5113340004321
610313140530
71430315214
oct373421246
9147060040
1065938086
1134247295
121a0ba746
1310878a26
148a85cb4
155bc7326
hex3ee22a6

65938086 has 48 divisors (see below), whose sum is σ = 149542848. Its totient is φ = 20976000.

The previous prime is 65938073. The next prime is 65938091. The reversal of 65938086 is 68083956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33736 + ... + 35636.

It is an arithmetic number, because the mean of its divisors is an integer number (3115476).

Almost surely, 265938086 is an apocalyptic number.

65938086 is an abundant number, since it is smaller than the sum of its proper divisors (83604762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65938086 is a wasteful number, since it uses less digits than its factorization.

65938086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 65938086 is about 8120.2269672713. The cubic root of 65938086 is about 403.9975941758.

The spelling of 65938086 in words is "sixty-five million, nine hundred thirty-eight thousand, eighty-six".

Divisors: 1 2 3 6 9 18 41 47 82 94 123 141 246 282 369 423 738 846 1901 1927 3802 3854 5703 5781 11406 11562 17109 17343 34218 34686 77941 89347 155882 178694 233823 268041 467646 536082 701469 804123 1402938 1608246 3663227 7326454 10989681 21979362 32969043 65938086