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530248291 = 1633253057
BaseRepresentation
bin11111100110101…
…111001001100011
31100221202101220121
4133212233021203
52041220421131
6124341021111
716066015246
oct3746571143
91327671817
10530248291
11252347431
121296b4797
1385b160b1
14505cb25d
1531840911
hex1f9af263

530248291 has 4 divisors (see below), whose sum is σ = 533501512. Its totient is φ = 526995072.

The previous prime is 530248261. The next prime is 530248297. The reversal of 530248291 is 192842035.

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 530248291 - 25 = 530248259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530248297) 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, 1626366 + ... + 1626691.

It is an arithmetic number, because the mean of its divisors is an integer number (133375378).

Almost surely, 2530248291 is an apocalyptic number.

530248291 is a deficient number, since it is larger than the sum of its proper divisors (3253221).

530248291 is a wasteful number, since it uses less digits than its factorization.

530248291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253220.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 530248291 is about 23027.1207709518. The cubic root of 530248291 is about 809.3935871682.

The spelling of 530248291 in words is "five hundred thirty million, two hundred forty-eight thousand, two hundred ninety-one".

Divisors: 1 163 3253057 530248291