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64384814 = 21317295023
BaseRepresentation
bin1111010110011…
…0111100101110
311111011002100202
43311212330232
5112440303224
610215553502
71411155554
oct365467456
9144132322
1064384814
113338629a
121968b892
1310453a30
14879dbd4
1559bbeae
hex3d66f2e

64384814 has 32 divisors (see below), whose sum is σ = 113944320. Its totient is φ = 26998272.

The previous prime is 64384781. The next prime is 64384819. The reversal of 64384814 is 41848346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64384819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10307 + ... + 15329.

It is an arithmetic number, because the mean of its divisors is an integer number (3560760).

Almost surely, 264384814 is an apocalyptic number.

64384814 is a deficient number, since it is larger than the sum of its proper divisors (49559506).

64384814 is a wasteful number, since it uses less digits than its factorization.

64384814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084.

The product of its digits is 73728, while the sum is 38.

The square root of 64384814 is about 8024.0148304948. The cubic root of 64384814 is about 400.8000943887.

The spelling of 64384814 in words is "sixty-four million, three hundred eighty-four thousand, eight hundred fourteen".

Divisors: 1 2 13 17 26 29 34 58 221 377 442 493 754 986 5023 6409 10046 12818 65299 85391 130598 145667 170782 291334 1110083 1893671 2220166 2476339 3787342 4952678 32192407 64384814