Base | Representation |
---|---|
bin | 10010100110011… |
… | …000111010000100 |
3 | 210202011221202121 |
4 | 102212120322010 |
5 | 1114341202010 |
6 | 50544215324 |
7 | 10506260422 |
oct | 2246307204 |
9 | 722157677 |
10 | 312053380 |
11 | 150167361 |
12 | 8860a544 |
13 | 4c85b192 |
14 | 2d630112 |
15 | 1c5e03da |
hex | 12998e84 |
312053380 has 12 divisors (see below), whose sum is σ = 655312140. Its totient is φ = 124821344.
The previous prime is 312053341. The next prime is 312053381. The reversal of 312053380 is 83350213.
It can be written as a sum of positive squares in 2 ways, for example, as 248819076 + 63234304 = 15774^2 + 7952^2 .
It is not an unprimeable number, because it can be changed into a prime (312053381) 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, 7801315 + ... + 7801354.
It is an arithmetic number, because the mean of its divisors is an integer number (54609345).
Almost surely, 2312053380 is an apocalyptic number.
It is an amenable number.
312053380 is an abundant number, since it is smaller than the sum of its proper divisors (343258760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
312053380 is a wasteful number, since it uses less digits than its factorization.
312053380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15602678 (or 15602676 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 25.
The square root of 312053380 is about 17665.0326917331. The cubic root of 312053380 is about 678.2809664969.
It can be divided in two parts, 31205 and 3380, that multiplied together give a square (105472900 = 102702).
The spelling of 312053380 in words is "three hundred twelve million, fifty-three thousand, three hundred eighty".
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