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530511311 = 113398581
BaseRepresentation
bin11111100111101…
…111010111001111
31100222020202201002
4133213233113033
52041302330221
6124350410515
716101162131
oct3747572717
91328222632
10530511311
11252507000
12129800a3b
1385ba8a25
1450659051
153189380b
hex1f9ef5cf

530511311 has 8 divisors (see below), whose sum is σ = 583524048. Its totient is φ = 482281800.

The previous prime is 530511283. The next prime is 530511313. The reversal of 530511311 is 113115035.

It is not a de Polignac number, because 530511311 - 210 = 530510287 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 (530511313) 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, 197960 + ... + 200621.

It is an arithmetic number, because the mean of its divisors is an integer number (72940506).

Almost surely, 2530511311 is an apocalyptic number.

530511311 is a deficient number, since it is larger than the sum of its proper divisors (53012737).

530511311 is an equidigital number, since it uses as much as digits as its factorization.

530511311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398614 (or 398592 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 530511311 is about 23032.8311546801. The cubic root of 530511311 is about 809.5273933587.

Adding to 530511311 its reverse (113115035), we get a palindrome (643626346).

The spelling of 530511311 in words is "five hundred thirty million, five hundred eleven thousand, three hundred eleven".

Divisors: 1 11 121 1331 398581 4384391 48228301 530511311