Base | Representation |
---|---|
bin | 10010100111010… |
… | …111111000011000 |
3 | 210202200001120221 |
4 | 102213113320120 |
5 | 1114422430240 |
6 | 50553525424 |
7 | 10511413426 |
oct | 2247277030 |
9 | 722601527 |
10 | 312311320 |
11 | 150323132 |
12 | 88713874 |
13 | 4c91b6c9 |
14 | 2d69a116 |
15 | 1c641a4a |
hex | 129d7e18 |
312311320 has 16 divisors (see below), whose sum is σ = 702700560. Its totient is φ = 124924512.
The previous prime is 312311281. The next prime is 312311323. The reversal of 312311320 is 23113213.
It is a junction number, because it is equal to n+sod(n) for n = 312311294 and 312311303.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312311323) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903852 + ... + 3903931.
It is an arithmetic number, because the mean of its divisors is an integer number (43918785).
Almost surely, 2312311320 is an apocalyptic number.
It is an amenable number.
312311320 is an abundant number, since it is smaller than the sum of its proper divisors (390389240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312311320 is a wasteful number, since it uses less digits than its factorization.
312311320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7807794 (or 7807790 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 312311320 is about 17672.3320475822. The cubic root of 312311320 is about 678.4678016350.
Adding to 312311320 its reverse (23113213), we get a palindrome (335424533).
The spelling of 312311320 in words is "three hundred twelve million, three hundred eleven thousand, three hundred twenty".
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