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30311233313 = 307313331953
BaseRepresentation
bin11100001110101100…
…001011011100100001
32220020102221012012212
4130032230023130201
5444034133431223
621531430531505
72122066142414
oct341654133441
986212835185
1030311233313
11119449a0249
125a5b206b95
132b209c6c1a
141677903b7b
15bc6106278
hex70eb0b721

30311233313 has 16 divisors (see below), whose sum is σ = 30631398336. Its totient is φ = 29993483520.

The previous prime is 30311233259. The next prime is 30311233327. The reversal of 30311233313 is 31333211303.

It is a cyclic number.

It is not a de Polignac number, because 30311233313 - 228 = 30042797857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30311233213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31805645 + ... + 31806597.

It is an arithmetic number, because the mean of its divisors is an integer number (1914462396).

Almost surely, 230311233313 is an apocalyptic number.

It is an amenable number.

30311233313 is a deficient number, since it is larger than the sum of its proper divisors (320165023).

30311233313 is a wasteful number, since it uses less digits than its factorization.

30311233313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 30311233313 its reverse (31333211303), we get a palindrome (61644444616).

The spelling of 30311233313 in words is "thirty billion, three hundred eleven million, two hundred thirty-three thousand, three hundred thirteen".

Divisors: 1 307 313 331 953 96091 101617 103603 292571 298289 315443 31806121 91574723 96841001 98733659 30311233313