Base | Representation |
---|---|
bin | 10110101111101001… |
… | …00111110101010110 |
3 | 1011111222211110200002 |
4 | 23113310213311112 |
5 | 200001433040203 |
6 | 5335400251302 |
7 | 611411230304 |
oct | 132764476526 |
9 | 34458743602 |
10 | 12210830678 |
11 | 51a6771902 |
12 | 2449470b32 |
13 | 11c7a417c7 |
14 | 83ba1d274 |
15 | 4b7018d88 |
hex | 2d7d27d56 |
12210830678 has 4 divisors (see below), whose sum is σ = 18316246020. Its totient is φ = 6105415338.
The previous prime is 12210830677. The next prime is 12210830689. The reversal of 12210830678 is 87603801221.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12210830677) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052707668 + ... + 3052707671.
It is an arithmetic number, because the mean of its divisors is an integer number (4579061505).
Almost surely, 212210830678 is an apocalyptic number.
12210830678 is a deficient number, since it is larger than the sum of its proper divisors (6105415342).
12210830678 is an equidigital number, since it uses as much as digits as its factorization.
12210830678 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6105415341.
The product of its (nonzero) digits is 32256, while the sum is 38.
The spelling of 12210830678 in words is "twelve billion, two hundred ten million, eight hundred thirty thousand, six hundred seventy-eight".
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