Base | Representation |
---|---|
bin | 100011011111000011010101… |
… | …1001011100011000010001110 |
3 | 1111221011102202011112012120200 |
4 | 1012332012223023203002032 |
5 | 311402423322214430410 |
6 | 3023503003222554330 |
7 | 122513502622220265 |
oct | 10676065313430216 |
9 | 1457142664465520 |
10 | 312131030233230 |
11 | 9050003236697a |
12 | 2b0111025989a6 |
13 | 10521aa3260590 |
14 | 571131865b5dc |
15 | 261439ec973c0 |
hex | 11be1ab2e308e |
312131030233230 has 96 divisors (see below), whose sum is σ = 873975522682080. Its totient is φ = 76831494209280.
The previous prime is 312131030233213. The next prime is 312131030233249. The reversal of 312131030233230 is 32332030131213.
312131030233230 is a `hidden beast` number, since 3 + 1 + 2 + 1 + 31 + 0 + 302 + 3 + 323 + 0 = 666.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 312131030233194 and 312131030233203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122039445 + ... + 124570815.
It is an arithmetic number, because the mean of its divisors is an integer number (9103911694605).
Almost surely, 2312131030233230 is an apocalyptic number.
312131030233230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
312131030233230 is an abundant number, since it is smaller than the sum of its proper divisors (561844492448850).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312131030233230 is a wasteful number, since it uses less digits than its factorization.
312131030233230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2636786 (or 2636783 counting only the distinct ones).
The product of its (nonzero) digits is 5832, while the sum is 27.
Adding to 312131030233230 its reverse (32332030131213), we get a palindrome (344463060364443).
The spelling of 312131030233230 in words is "three hundred twelve trillion, one hundred thirty-one billion, thirty million, two hundred thirty-three thousand, two hundred thirty".
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