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231300332213 = 1391664031167
BaseRepresentation
bin1101011101101010010…
…0101111101010110101
3211010000201101022022212
43113122210233222311
512242200341112323
6254131412503205
722465560245606
oct3273244575265
9733021338285
10231300332213
118a10400a055
12389b201ab05
1318a71c07502
14b2a30d5dad
15603b306b78
hex35da92fab5

231300332213 has 4 divisors (see below), whose sum is σ = 232964363520. Its totient is φ = 229636300908.

The previous prime is 231300332203. The next prime is 231300332239. The reversal of 231300332213 is 312233003132.

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.

It is a cyclic number.

It is not a de Polignac number, because 231300332213 - 28 = 231300331957 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 (231300332203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832015445 + ... + 832015722.

It is an arithmetic number, because the mean of its divisors is an integer number (58241090880).

Almost surely, 2231300332213 is an apocalyptic number.

It is an amenable number.

231300332213 is a deficient number, since it is larger than the sum of its proper divisors (1664031307).

231300332213 is a wasteful number, since it uses less digits than its factorization.

231300332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664031306.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231300332213 its reverse (312233003132), we get a palindrome (543533335345).

The spelling of 231300332213 in words is "two hundred thirty-one billion, three hundred million, three hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 139 1664031167 231300332213