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42388363 = 56397517
BaseRepresentation
bin1010000110110…
…0101110001011
32221202112220101
42201230232023
541322411423
64112310231
71023203143
oct241545613
987675811
1042388363
1121a22006
1212242377
138a21994
1458b5923
153ac47ad
hex286cb8b

42388363 has 4 divisors (see below), whose sum is σ = 42401520. Its totient is φ = 42375208.

The previous prime is 42388331. The next prime is 42388403. The reversal of 42388363 is 36388324.

42388363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42388363 - 25 = 42388331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42388763) 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 3 ways as a sum of consecutive naturals, for example, 1881 + ... + 9397.

It is an arithmetic number, because the mean of its divisors is an integer number (10600380).

Almost surely, 242388363 is an apocalyptic number.

42388363 is a deficient number, since it is larger than the sum of its proper divisors (13157).

42388363 is an equidigital number, since it uses as much as digits as its factorization.

42388363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13156.

The product of its digits is 82944, while the sum is 37.

The square root of 42388363 is about 6510.6346080855. The cubic root of 42388363 is about 348.6707759733.

The spelling of 42388363 in words is "forty-two million, three hundred eighty-eight thousand, three hundred sixty-three".

Divisors: 1 5639 7517 42388363