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53017273 = 109486397
BaseRepresentation
bin1100101000111…
…1101010111001
310200202120000201
43022033222321
5102033023043
65132202201
71212432211
oct312175271
9120676021
1053017273
1127a21731
1215909361
13aca388a
147081241
1549c3c4d
hex328fab9

53017273 has 4 divisors (see below), whose sum is σ = 53503780. Its totient is φ = 52530768.

The previous prime is 53017267. The next prime is 53017291. The reversal of 53017273 is 37271035.

53017273 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37271035 = 57454207.

It can be written as a sum of positive squares in 2 ways, for example, as 45333289 + 7683984 = 6733^2 + 2772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53017273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53017213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243090 + ... + 243307.

It is an arithmetic number, because the mean of its divisors is an integer number (13375945).

Almost surely, 253017273 is an apocalyptic number.

It is an amenable number.

53017273 is a deficient number, since it is larger than the sum of its proper divisors (486507).

53017273 is a wasteful number, since it uses less digits than its factorization.

53017273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486506.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 53017273 is about 7281.2961071502. The cubic root of 53017273 is about 375.6693774829.

The spelling of 53017273 in words is "fifty-three million, seventeen thousand, two hundred seventy-three".

Divisors: 1 109 486397 53017273