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53020223 = 371432979
BaseRepresentation
bin1100101001000…
…0011000111111
310200202201001222
43022100120333
5102033121343
65132223555
71212443624
oct312203077
9120681058
1053020223
1127a23973
121590abbb
13aca5019
14708234b
1549c4a68
hex329063f

53020223 has 4 divisors (see below), whose sum is σ = 54453240. Its totient is φ = 51587208.

The previous prime is 53020217. The next prime is 53020271. The reversal of 53020223 is 32202035.

53020223 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53020223 is a prime.

It is a super-2 number, since 2×530202232 = 5622288093939458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53020423) 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, 716453 + ... + 716526.

It is an arithmetic number, because the mean of its divisors is an integer number (13613310).

Almost surely, 253020223 is an apocalyptic number.

53020223 is a deficient number, since it is larger than the sum of its proper divisors (1433017).

53020223 is a wasteful number, since it uses less digits than its factorization.

53020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433016.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 53020223 is about 7281.4986781569. The cubic root of 53020223 is about 375.6763450493.

Adding to 53020223 its reverse (32202035), we get a palindrome (85222258).

The spelling of 53020223 in words is "fifty-three million, twenty thousand, two hundred twenty-three".

Divisors: 1 37 1432979 53020223