Base | Representation |
---|---|
bin | 1001000101110000101… |
… | …01100111110010000111 |
3 | 1002212011211121020100211 |
4 | 10202320111213302013 |
5 | 20104123030233111 |
6 | 355252122420251 |
7 | 31364556632221 |
oct | 4427025476207 |
9 | 1085154536324 |
10 | 312330321031 |
11 | 110505361a63 |
12 | 50646961687 |
13 | 235b6549361 |
14 | 1118c987411 |
15 | 81cee2c521 |
hex | 48b8567c87 |
312330321031 has 8 divisors (see below), whose sum is σ = 329281671600. Its totient is φ = 295430261760.
The previous prime is 312330320989. The next prime is 312330321133. The reversal of 312330321031 is 130123033213.
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 312330321031 - 213 = 312330312839 is a prime.
It is a super-2 number, since 2×3123303210312 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 312330320993 and 312330321011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312330351031) 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 7 ways as a sum of consecutive naturals, for example, 12810316 + ... + 12834673.
It is an arithmetic number, because the mean of its divisors is an integer number (41160208950).
Almost surely, 2312330321031 is an apocalyptic number.
312330321031 is a deficient number, since it is larger than the sum of its proper divisors (16951350569).
312330321031 is a wasteful number, since it uses less digits than its factorization.
312330321031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25645649.
The product of its (nonzero) digits is 972, while the sum is 22.
Adding to 312330321031 its reverse (130123033213), we get a palindrome (442453354244).
The spelling of 312330321031 in words is "three hundred twelve billion, three hundred thirty million, three hundred twenty-one thousand, thirty-one".
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