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532813 = 4312391
BaseRepresentation
bin10000010000101001101
31000001212211
42002011031
5114022223
615230421
74346251
oct2020515
91001784
10532813
11334346
12218411
13158698
14dc261
15a7d0d
hex8214d

532813 has 4 divisors (see below), whose sum is σ = 545248. Its totient is φ = 520380.

The previous prime is 532811. The next prime is 532823. The reversal of 532813 is 318235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318235 = 563647.

It is a cyclic number.

It is not a de Polignac number, because 532813 - 21 = 532811 is a prime.

It is a Duffinian number.

532813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6153 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (136312).

2532813 is an apocalyptic number.

It is an amenable number.

532813 is a deficient number, since it is larger than the sum of its proper divisors (12435).

532813 is a wasteful number, since it uses less digits than its factorization.

532813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12434.

The product of its digits is 720, while the sum is 22.

The square root of 532813 is about 729.9404085266. The cubic root of 532813 is about 81.0696449226.

The spelling of 532813 in words is "five hundred thirty-two thousand, eight hundred thirteen".

Divisors: 1 43 12391 532813