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230534557 = 1147943753
BaseRepresentation
bin11011011110110…
…10110110011101
3121001210100221221
431233122312131
5433004101212
634513053341
75466340261
oct1557326635
9531710857
10230534557
11109149030
1265257251
13389b86a6
14228900a1
151538b807
hexdbdad9d

230534557 has 8 divisors (see below), whose sum is σ = 252023040. Its totient is φ = 209134560.

The previous prime is 230534539. The next prime is 230534587. The reversal of 230534557 is 755435032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230534557 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 (230534527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16608 + ... + 27145.

It is an arithmetic number, because the mean of its divisors is an integer number (31502880).

Almost surely, 2230534557 is an apocalyptic number.

It is an amenable number.

230534557 is a deficient number, since it is larger than the sum of its proper divisors (21488483).

230534557 is a wasteful number, since it uses less digits than its factorization.

230534557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44243.

The product of its (nonzero) digits is 63000, while the sum is 34.

The square root of 230534557 is about 15183.3644822220. The cubic root of 230534557 is about 613.1668656275.

Adding to 230534557 its reverse (755435032), we get a palindrome (985969589).

The spelling of 230534557 in words is "two hundred thirty million, five hundred thirty-four thousand, five hundred fifty-seven".

Divisors: 1 11 479 5269 43753 481283 20957687 230534557