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42636053 = 67636359
BaseRepresentation
bin1010001010100…
…1001100010101
32222020010200002
42202221030111
541403323203
64121501045
71025254235
oct242511425
988203602
1042636053
1122081109
1212341785
138aaa645
14593bcc5
153b22d88
hex28a9315

42636053 has 4 divisors (see below), whose sum is σ = 43272480. Its totient is φ = 41999628.

The previous prime is 42636031. The next prime is 42636071. The reversal of 42636053 is 35063624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42636053 - 212 = 42631957 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 (42666053) 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, 318113 + ... + 318246.

It is an arithmetic number, because the mean of its divisors is an integer number (10818120).

Almost surely, 242636053 is an apocalyptic number.

It is an amenable number.

42636053 is a deficient number, since it is larger than the sum of its proper divisors (636427).

42636053 is an equidigital number, since it uses as much as digits as its factorization.

42636053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636426.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 42636053 is about 6529.6288562215. The cubic root of 42636053 is about 349.3485924572.

Adding to 42636053 its reverse (35063624), we get a palindrome (77699677).

The spelling of 42636053 in words is "forty-two million, six hundred thirty-six thousand, fifty-three".

Divisors: 1 67 636359 42636053