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530243 = 7211359
BaseRepresentation
bin10000001011101000011
3222221100122
42001131003
5113431433
615210455
74335620
oct2013503
9887318
10530243
1133241a
12216a2b
1315746c
14db347
15a7198
hex81743

530243 has 8 divisors (see below), whose sum is σ = 610560. Its totient is φ = 451080.

The previous prime is 530237. The next prime is 530249. The reversal of 530243 is 342035.

It is an interprime number because it is at equal distance from previous prime (530237) and next prime (530249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 530243 - 24 = 530227 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 (530249) 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, 1298 + ... + 1656.

It is an arithmetic number, because the mean of its divisors is an integer number (76320).

2530243 is an apocalyptic number.

530243 is a deficient number, since it is larger than the sum of its proper divisors (80317).

530243 is a wasteful number, since it uses less digits than its factorization.

530243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 530243 is about 728.1778628879. The cubic root of 530243 is about 80.9390895023.

Adding to 530243 its reverse (342035), we get a palindrome (872278).

The spelling of 530243 in words is "five hundred thirty thousand, two hundred forty-three".

Divisors: 1 7 211 359 1477 2513 75749 530243