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53171223 = 3721721277
BaseRepresentation
bin1100101011010…
…1010000010111
310201001101012120
43022311100113
5102102434343
65135351023
71213643100
oct312652027
9121041176
1053171223
1128017366
1215982473
13b028981
1470c13a7
154a04683
hex32b5417

53171223 has 24 divisors (see below), whose sum is σ = 87324912. Its totient is φ = 28594944.

The previous prime is 53171221. The next prime is 53171233. The reversal of 53171223 is 32217135.

53171223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53171223 - 21 = 53171221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53171193 and 53171202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53171221) 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 23 ways as a sum of consecutive naturals, for example, 8140 + ... + 13137.

It is an arithmetic number, because the mean of its divisors is an integer number (3638538).

Almost surely, 253171223 is an apocalyptic number.

53171223 is a deficient number, since it is larger than the sum of its proper divisors (34153689).

53171223 is a wasteful number, since it uses less digits than its factorization.

53171223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21311 (or 21304 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 53171223 is about 7291.8600507689. The cubic root of 53171223 is about 376.0326453284.

Adding to 53171223 its reverse (32217135), we get a palindrome (85388358).

The spelling of 53171223 in words is "fifty-three million, one hundred seventy-one thousand, two hundred twenty-three".

Divisors: 1 3 7 17 21 49 51 119 147 357 833 2499 21277 63831 148939 361709 446817 1042573 1085127 2531963 3127719 7595889 17723741 53171223