Base | Representation |
---|---|
bin | 1001000101101110010… |
… | …00100110110111111111 |
3 | 1002212010102121112112012 |
4 | 10202313020212313333 |
5 | 20104102343212343 |
6 | 355250122001435 |
7 | 31364223215555 |
oct | 4426710466777 |
9 | 1085112545465 |
10 | 312310132223 |
11 | 1104a4a228a1 |
12 | 5064004627b |
13 | 235b22cb00b |
14 | 1118a00dbd5 |
15 | 81cd290718 |
hex | 48b7226dff |
312310132223 has 4 divisors (see below), whose sum is σ = 325888833648. Its totient is φ = 298731430800.
The previous prime is 312310132207. The next prime is 312310132249. The reversal of 312310132223 is 322231013213.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322231013213 = 12611 ⋅25551583.
It is a cyclic number.
It is not a de Polignac number, because 312310132223 - 24 = 312310132207 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 13578701401 = 312310132223 / (3 + 1 + 2 + 3 + 1 + 0 + 1 + 3 + 2 + 2 + 2 + 3).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312310132273) 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, 6789350678 + ... + 6789350723.
It is an arithmetic number, because the mean of its divisors is an integer number (81472208412).
Almost surely, 2312310132223 is an apocalyptic number.
312310132223 is a deficient number, since it is larger than the sum of its proper divisors (13578701425).
312310132223 is a wasteful number, since it uses less digits than its factorization.
312310132223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13578701424.
The product of its (nonzero) digits is 1296, while the sum is 23.
Adding to 312310132223 its reverse (322231013213), we get a palindrome (634541145436).
The spelling of 312310132223 in words is "three hundred twelve billion, three hundred ten million, one hundred thirty-two thousand, two hundred twenty-three".
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