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42530303 = 192778081
BaseRepresentation
bin1010001000111…
…1010111111111
32222000202121102
42202033113333
541341432203
64115323315
71024334024
oct242172777
988022542
1042530303
1122009712
12122b053b
138a7147a
14591154b
153b01888
hex288f5ff

42530303 has 8 divisors (see below), whose sum is σ = 44935920. Its totient is φ = 40141440.

The previous prime is 42530297. The next prime is 42530309. The reversal of 42530303 is 30303524.

It is an interprime number because it is at equal distance from previous prime (42530297) and next prime (42530309).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42530303 - 24 = 42530287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42530309) 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 7 ways as a sum of consecutive naturals, for example, 1223 + ... + 9303.

It is an arithmetic number, because the mean of its divisors is an integer number (5616990).

Almost surely, 242530303 is an apocalyptic number.

42530303 is a deficient number, since it is larger than the sum of its proper divisors (2405617).

42530303 is a wasteful number, since it uses less digits than its factorization.

42530303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8377.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 42530303 is about 6521.5261250723. The cubic root of 42530303 is about 349.0595241149.

Adding to 42530303 its reverse (30303524), we get a palindrome (72833827).

The spelling of 42530303 in words is "forty-two million, five hundred thirty thousand, three hundred three".

Divisors: 1 19 277 5263 8081 153539 2238437 42530303