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530311 = 2323057
BaseRepresentation
bin10000001011110000111
3222221110011
42001132013
5113432221
615211051
74336045
oct2013607
9887404
10530311
11332481
12216a87
131574c2
14db395
15a71e1
hex81787

530311 has 4 divisors (see below), whose sum is σ = 553392. Its totient is φ = 507232.

The previous prime is 530303. The next prime is 530329. The reversal of 530311 is 113035.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 530311 - 23 = 530303 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 530291 and 530300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11506 + ... + 11551.

It is an arithmetic number, because the mean of its divisors is an integer number (138348).

2530311 is an apocalyptic number.

530311 is a deficient number, since it is larger than the sum of its proper divisors (23081).

530311 is a wasteful number, since it uses less digits than its factorization.

530311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23080.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 530311 is about 728.2245532801. The cubic root of 530311 is about 80.9425493140.

Adding to 530311 its reverse (113035), we get a palindrome (643346).

It can be divided in two parts, 530 and 311, that added together give a square (841 = 292).

The spelling of 530311 in words is "five hundred thirty thousand, three hundred eleven".

Divisors: 1 23 23057 530311