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231301230331 = 4728117513533
BaseRepresentation
bin1101011101101010100…
…0001010111011111011
3211010000210001221022111
43113122220022323323
512242201103332311
6254131444033151
722465601006203
oct3273250127373
9733023057274
10231301230331
118a1045728a6
12389b23927b7
1318a72160242
14b2a328b403
15603b432d21
hex35daa0aefb

231301230331 has 8 divisors (see below), whose sum is σ = 237063196224. Its totient is φ = 225574292160.

The previous prime is 231301230299. The next prime is 231301230353. The reversal of 231301230331 is 133032103132.

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

It is a cyclic number.

It is not a de Polignac number, because 231301230331 - 25 = 231301230299 is a prime.

It is a super-2 number, since 2×2313012303312 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231301230131) 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 7 ways as a sum of consecutive naturals, for example, 8743560 + ... + 8769973.

It is an arithmetic number, because the mean of its divisors is an integer number (29632899528).

Almost surely, 2231301230331 is an apocalyptic number.

231301230331 is a deficient number, since it is larger than the sum of its proper divisors (5761965893).

231301230331 is a wasteful number, since it uses less digits than its factorization.

231301230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17513861.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231301230331 its reverse (133032103132), we get a palindrome (364333333463).

The spelling of 231301230331 in words is "two hundred thirty-one billion, three hundred one million, two hundred thirty thousand, three hundred thirty-one".

Divisors: 1 47 281 13207 17513533 823136051 4921302773 231301230331