Base | Representation |
---|---|
bin | 10010111111111… |
… | …011011011011100 |
3 | 211012210002120120 |
4 | 102333323123130 |
5 | 1123044422010 |
6 | 51343514540 |
7 | 10620213366 |
oct | 2277733334 |
9 | 735702516 |
10 | 318748380 |
11 | 153a1a415 |
12 | 8a8b8a50 |
13 | 51063612 |
14 | 30493d36 |
15 | 1ceb3e70 |
hex | 12ffb6dc |
318748380 has 24 divisors (see below), whose sum is σ = 892495632. Its totient is φ = 84999552.
The previous prime is 318748369. The next prime is 318748393. The reversal of 318748380 is 83847813.
318748380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2656177 + ... + 2656296.
It is an arithmetic number, because the mean of its divisors is an integer number (37187318).
Almost surely, 2318748380 is an apocalyptic number.
318748380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
318748380 is an abundant number, since it is smaller than the sum of its proper divisors (573747252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
318748380 is a wasteful number, since it uses less digits than its factorization.
318748380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5312485 (or 5312483 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 42.
The square root of 318748380 is about 17853.5257022248. The cubic root of 318748380 is about 683.0974467723.
The spelling of 318748380 in words is "three hundred eighteen million, seven hundred forty-eight thousand, three hundred eighty".
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