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42382749 = 3191037219
BaseRepresentation
bin1010000110101…
…1010110011101
32221202021012110
42201223112131
541322221444
64112224233
71023150603
oct241532635
987667173
1042382749
1121a18872
121223b079
138a1c266
1458b3873
153ac2cb9
hex286b59d

42382749 has 16 divisors (see below), whose sum is σ = 60070400. Its totient is φ = 26504496.

The previous prime is 42382733. The next prime is 42382757. The reversal of 42382749 is 94728324.

It is not a de Polignac number, because 42382749 - 24 = 42382733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42382729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2262 + ... + 9480.

It is an arithmetic number, because the mean of its divisors is an integer number (3754400).

Almost surely, 242382749 is an apocalyptic number.

It is an amenable number.

42382749 is a deficient number, since it is larger than the sum of its proper divisors (17687651).

42382749 is a wasteful number, since it uses less digits than its factorization.

42382749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344.

The product of its digits is 96768, while the sum is 39.

The square root of 42382749 is about 6510.2034530420. The cubic root of 42382749 is about 348.6553824075.

The spelling of 42382749 in words is "forty-two million, three hundred eighty-two thousand, seven hundred forty-nine".

Divisors: 1 3 19 57 103 309 1957 5871 7219 21657 137161 411483 743557 2230671 14127583 42382749