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42808364 = 2216365657
BaseRepresentation
bin1010001101001…
…1010000101100
32222112220000222
42203103100230
541424331424
64125310512
71026602504
oct243232054
988486028
1042808364
1122189615
1212405438
138b3abc1
145984a04
153b58e5e
hex28d342c

42808364 has 12 divisors (see below), whose sum is σ = 75375384. Its totient is φ = 21272544.

The previous prime is 42808357. The next prime is 42808369. The reversal of 42808364 is 46380824.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (42808369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32177 + ... + 33480.

It is an arithmetic number, because the mean of its divisors is an integer number (6281282).

Almost surely, 242808364 is an apocalyptic number.

It is an amenable number.

42808364 is a deficient number, since it is larger than the sum of its proper divisors (32567020).

42808364 is a wasteful number, since it uses less digits than its factorization.

42808364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65824 (or 65822 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 42808364 is about 6542.8100996437. The cubic root of 42808364 is about 349.8185835332.

The spelling of 42808364 in words is "forty-two million, eight hundred eight thousand, three hundred sixty-four".

Divisors: 1 2 4 163 326 652 65657 131314 262628 10702091 21404182 42808364