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538023 = 3199439
BaseRepresentation
bin10000011010110100111
31000100000210
42003112213
5114204043
615310503
74400403
oct2032647
91010023
10538023
11338252
1221b433
1315ab75
14100103
15a9633
hex835a7

538023 has 8 divisors (see below), whose sum is σ = 755200. Its totient is φ = 339768.

The previous prime is 538019. The next prime is 538049. The reversal of 538023 is 320835.

538023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 538023 - 22 = 538019 is a prime.

It is a d-powerful number, because it can be written as 5 + 38 + 0 + 8 + 23 + 312 .

It is the 734-th Hogben number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538073) by changing a digit.

It is a nontrivial repunit in base 733.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4663 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (94400).

2538023 is an apocalyptic number.

538023 is a deficient number, since it is larger than the sum of its proper divisors (217177).

538023 is a wasteful number, since it uses less digits than its factorization.

538023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 538023 is about 733.5005112473. The cubic root of 538023 is about 81.3330291278. Note that the first 3 decimals are identical.

Adding to 538023 its reverse (320835), we get a palindrome (858858).

The spelling of 538023 in words is "five hundred thirty-eight thousand, twenty-three".

Divisors: 1 3 19 57 9439 28317 179341 538023