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52663073 = 56899257
BaseRepresentation
bin1100100011100…
…1001100100001
310200002120011012
43020321030201
5101440204243
65120430305
71206425441
oct310711441
9120076135
1052663073
11277aa601
1215778395
13abab5a8
146dcc121
154953d18
hex3239321

52663073 has 4 divisors (see below), whose sum is σ = 52678020. Its totient is φ = 52648128.

The previous prime is 52663067. The next prime is 52663109. The reversal of 52663073 is 37036625.

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 can be written as a sum of positive squares in 2 ways, for example, as 27331984 + 25331089 = 5228^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 52663073 - 24 = 52663057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52663033) 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, 1061 + ... + 10317.

It is an arithmetic number, because the mean of its divisors is an integer number (13169505).

Almost surely, 252663073 is an apocalyptic number.

It is an amenable number.

52663073 is a deficient number, since it is larger than the sum of its proper divisors (14947).

52663073 is an equidigital number, since it uses as much as digits as its factorization.

52663073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14946.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 52663073 is about 7256.9327542702. The cubic root of 52663073 is about 374.8309116210.

Adding to 52663073 its reverse (37036625), we get a palindrome (89699698).

The spelling of 52663073 in words is "fifty-two million, six hundred sixty-three thousand, seventy-three".

Divisors: 1 5689 9257 52663073