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53500023 = 3216336469
BaseRepresentation
bin1100110000010…
…1100001110111
310201200002020100
43030011201313
5102144000043
65150405143
71216512513
oct314054167
9121602210
1053500023
11282213a5
1215b007b3
13b112525
147169143
154a6bcd3
hex3305877

53500023 has 12 divisors (see below), whose sum is σ = 77754040. Its totient is φ = 35446896.

The previous prime is 53499997. The next prime is 53500033. The reversal of 53500023 is 32000535.

53500023 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 53500023 - 212 = 53495927 is a prime.

It is a super-2 number, since 2×535000232 = 5724504922001058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53499969 and 53500005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53500033) 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 11 ways as a sum of consecutive naturals, for example, 16768 + ... + 19701.

Almost surely, 253500023 is an apocalyptic number.

53500023 is a deficient number, since it is larger than the sum of its proper divisors (24254017).

53500023 is a wasteful number, since it uses less digits than its factorization.

53500023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36638 (or 36635 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 53500023 is about 7314.3709914114. The cubic root of 53500023 is about 376.8061561667.

Adding to 53500023 its reverse (32000535), we get a palindrome (85500558).

The spelling of 53500023 in words is "fifty-three million, five hundred thousand, twenty-three".

Divisors: 1 3 9 163 489 1467 36469 109407 328221 5944447 17833341 53500023