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530803 = 71319307
BaseRepresentation
bin10000001100101110011
3222222010101
42001211303
5113441203
615213231
74340350
oct2014563
9888111
10530803
11332889
12217217
131577b0
14db627
15a741d
hex81973

530803 has 16 divisors (see below), whose sum is σ = 689920. Its totient is φ = 396576.

The previous prime is 530797. The next prime is 530807. The reversal of 530803 is 308035.

It is a cyclic number.

It is not a de Polignac number, because 530803 - 217 = 399731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (530807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1576 + ... + 1882.

It is an arithmetic number, because the mean of its divisors is an integer number (43120).

2530803 is an apocalyptic number.

530803 is a deficient number, since it is larger than the sum of its proper divisors (159117).

530803 is a wasteful number, since it uses less digits than its factorization.

530803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 530803 is about 728.5622828558. The cubic root of 530803 is about 80.9675732623.

Adding to 530803 its reverse (308035), we get a palindrome (838838).

The spelling of 530803 in words is "five hundred thirty thousand, eight hundred three".

Divisors: 1 7 13 19 91 133 247 307 1729 2149 3991 5833 27937 40831 75829 530803