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230543243 = 7292275003
BaseRepresentation
bin11011011110111…
…00111110001011
3121001210210212122
431233130332023
5433004340433
634513201455
75466404510
oct1557347613
9531723778
10230543243
11109154607
126526028b
13389bc628
1422893307
151538e198
hexdbdcf8b

230543243 has 16 divisors (see below), whose sum is σ = 273818880. Its totient is φ = 189915936.

The previous prime is 230543233. The next prime is 230543281. The reversal of 230543243 is 342345032.

It is not a de Polignac number, because 230543243 - 28 = 230542987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230543213) 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 15 ways as a sum of consecutive naturals, for example, 43580 + ... + 48582.

It is an arithmetic number, because the mean of its divisors is an integer number (17113680).

Almost surely, 2230543243 is an apocalyptic number.

230543243 is a deficient number, since it is larger than the sum of its proper divisors (43275637).

230543243 is a wasteful number, since it uses less digits than its factorization.

230543243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 230543243 is about 15183.6505162625. The cubic root of 230543243 is about 613.1745664260.

Adding to 230543243 its reverse (342345032), we get a palindrome (572888275).

The spelling of 230543243 in words is "two hundred thirty million, five hundred forty-three thousand, two hundred forty-three".

Divisors: 1 7 29 203 227 1589 5003 6583 35021 46081 145087 1015609 1135681 7949767 32934749 230543243