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53438063 = 77634009
BaseRepresentation
bin1100101111011…
…0011001101111
310201112221020112
43023312121233
5102140004223
65145210235
71216134050
oct313663157
9121487215
1053438063
1128189898
1215a9097b
13b0c0273
147150727
154a58778
hex32f666f

53438063 has 4 divisors (see below), whose sum is σ = 61072080. Its totient is φ = 45804048.

The previous prime is 53438059. The next prime is 53438081. The reversal of 53438063 is 36083435.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53438063 - 22 = 53438059 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 (53438093) 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 3 ways as a sum of consecutive naturals, for example, 3816998 + ... + 3817011.

It is an arithmetic number, because the mean of its divisors is an integer number (15268020).

Almost surely, 253438063 is an apocalyptic number.

53438063 is a deficient number, since it is larger than the sum of its proper divisors (7634017).

53438063 is an equidigital number, since it uses as much as digits as its factorization.

53438063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634016.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 53438063 is about 7310.1342668928. The cubic root of 53438063 is about 376.6606364277.

The spelling of 53438063 in words is "fifty-three million, four hundred thirty-eight thousand, sixty-three".

Divisors: 1 7 7634009 53438063