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531230 = 2577589
BaseRepresentation
bin10000001101100011110
3222222201012
42001230132
5113444410
615215222
74341530
oct2015436
9888635
10531230
11333137
12217512
13157a4b
14db850
15a7605
hex81b1e

531230 has 16 divisors (see below), whose sum is σ = 1092960. Its totient is φ = 182112.

The previous prime is 531229. The next prime is 531239. The reversal of 531230 is 32135.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 531230.

It is not an unprimeable number, because it can be changed into a prime (531239) 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, 3725 + ... + 3864.

It is an arithmetic number, because the mean of its divisors is an integer number (68310).

2531230 is an apocalyptic number.

531230 is an abundant number, since it is smaller than the sum of its proper divisors (561730).

It is a weird number, because it is abundant, but not a pseudoperfect number.

531230 is a wasteful number, since it uses less digits than its factorization.

531230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7603.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 531230 is about 728.8552668397. The cubic root of 531230 is about 80.9892786704.

Adding to 531230 its reverse (32135), we get a palindrome (563365).

The spelling of 531230 in words is "five hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 7589 15178 37945 53123 75890 106246 265615 531230