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232530313 = 1261918427
BaseRepresentation
bin11011101110000…
…10000110001001
3121012112202121211
431313002012021
5434011432223
635023533121
75522321641
oct1567020611
9535482554
10232530313
1110a291514
1265a5a1a1
1339236c02
1422c4d521
1515632d0d
hexddc2189

232530313 has 4 divisors (see below), whose sum is σ = 232561360. Its totient is φ = 232499268.

The previous prime is 232530307. The next prime is 232530317. The reversal of 232530313 is 313035232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 232530313 - 25 = 232530281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232530317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3406 + ... + 21832.

It is an arithmetic number, because the mean of its divisors is an integer number (58140340).

Almost surely, 2232530313 is an apocalyptic number.

It is an amenable number.

232530313 is a deficient number, since it is larger than the sum of its proper divisors (31047).

232530313 is a wasteful number, since it uses less digits than its factorization.

232530313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31046.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 232530313 is about 15248.9446520079. The cubic root of 232530313 is about 614.9311955106.

Adding to 232530313 its reverse (313035232), we get a palindrome (545565545).

The spelling of 232530313 in words is "two hundred thirty-two million, five hundred thirty thousand, three hundred thirteen".

Divisors: 1 12619 18427 232530313