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531293 = 7711069
BaseRepresentation
bin10000001101101011101
3222222210112
42001231131
5114000133
615215405
74341650
oct2015535
9888715
10531293
11333194
12217565
13157a99
14db897
15a7648
hex81b5d

531293 has 8 divisors (see below), whose sum is σ = 616320. Its totient is φ = 448560.

The previous prime is 531287. The next prime is 531299. The reversal of 531293 is 392135.

It is a happy number.

531293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (531287) and next prime (531299).

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

It is not a de Polignac number, because 531293 - 26 = 531229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (77040).

2531293 is an apocalyptic number.

It is an amenable number.

531293 is a deficient number, since it is larger than the sum of its proper divisors (85027).

531293 is a wasteful number, since it uses less digits than its factorization.

531293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147.

The product of its digits is 810, while the sum is 23.

The square root of 531293 is about 728.8984840154. The cubic root of 531293 is about 80.9924801229.

The spelling of 531293 in words is "five hundred thirty-one thousand, two hundred ninety-three".

Divisors: 1 7 71 497 1069 7483 75899 531293