Base | Representation |
---|---|
bin | 1011100010000110011011… |
… | …0101011100100100011110 |
3 | 1122220020111200001220211020 |
4 | 2320201212311130210132 |
5 | 3130224044444310403 |
6 | 42545154340505010 |
7 | 2446063556631063 |
oct | 270414665344436 |
9 | 48806450056736 |
10 | 12680468744478 |
11 | 4049836033107 |
12 | 15096873ab166 |
13 | 70c9bc6126a2 |
14 | 31ba48d78c6a |
15 | 16ecac49e453 |
hex | b8866d5c91e |
12680468744478 has 16 divisors (see below), whose sum is σ = 25385488263696. Its totient is φ = 4222731119040.
The previous prime is 12680468744423. The next prime is 12680468744479. The reversal of 12680468744478 is 87444786408621.
12680468744478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12680468744479) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022942233 + ... + 1022954628.
It is an arithmetic number, because the mean of its divisors is an integer number (1586593016481).
Almost surely, 212680468744478 is an apocalyptic number.
12680468744478 is an abundant number, since it is smaller than the sum of its proper divisors (12705019519218).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12680468744478 is a wasteful number, since it uses less digits than its factorization.
12680468744478 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2045897899.
The product of its (nonzero) digits is 462422016, while the sum is 69.
The spelling of 12680468744478 in words is "twelve trillion, six hundred eighty billion, four hundred sixty-eight million, seven hundred forty-four thousand, four hundred seventy-eight".
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