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531572 = 22132893
BaseRepresentation
bin10000001110001110100
31000000011212
42001301310
5114002242
615220552
74342526
oct2016164
91000155
10531572
11333418
12217758
13157c52
14dba16
15a7782
hex81c74

531572 has 6 divisors (see below), whose sum is σ = 930258. Its totient is φ = 265784.

The previous prime is 531571. The next prime is 531581. The reversal of 531572 is 275135.

It can be written as a sum of positive squares in only one way, i.e., 524176 + 7396 = 724^2 + 86^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66443 + ... + 66450.

It is an arithmetic number, because the mean of its divisors is an integer number (155043).

2531572 is an apocalyptic number.

It is an amenable number.

531572 is a deficient number, since it is larger than the sum of its proper divisors (398686).

531572 is a wasteful number, since it uses less digits than its factorization.

531572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132897 (or 132895 counting only the distinct ones).

The product of its digits is 1050, while the sum is 23.

The square root of 531572 is about 729.0898435721. The cubic root of 531572 is about 81.0066549427.

The spelling of 531572 in words is "five hundred thirty-one thousand, five hundred seventy-two".

Divisors: 1 2 4 132893 265786 531572