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64168293 = 3721133863
BaseRepresentation
bin1111010011001…
…0000101100101
311110202002100110
43310302011211
5112411341133
610211203233
71406264400
oct364620545
9143662313
1064168293
1133248652
12195a6519
13103a9307
148744d37
155977c63
hex3d32165

64168293 has 24 divisors (see below), whose sum is σ = 100433088. Its totient is φ = 36333696.

The previous prime is 64168289. The next prime is 64168297. The reversal of 64168293 is 39286146.

64168293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64168289) and next prime (64168297).

It is not a de Polignac number, because 64168293 - 22 = 64168289 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64168297) 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 23 ways as a sum of consecutive naturals, for example, 14680 + ... + 18542.

It is an arithmetic number, because the mean of its divisors is an integer number (4184712).

Almost surely, 264168293 is an apocalyptic number.

It is an amenable number.

64168293 is a deficient number, since it is larger than the sum of its proper divisors (36264795).

64168293 is a wasteful number, since it uses less digits than its factorization.

64168293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993 (or 3986 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 64168293 is about 8010.5114068953. The cubic root of 64168293 is about 400.3503035457.

The spelling of 64168293 in words is "sixty-four million, one hundred sixty-eight thousand, two hundred ninety-three".

Divisors: 1 3 7 21 49 113 147 339 791 2373 3863 5537 11589 16611 27041 81123 189287 436519 567861 1309557 3055633 9166899 21389431 64168293