Base | Representation |
---|---|
bin | 10111110010001010… |
… | …00011101001101111 |
3 | 1012221212201120221002 |
4 | 23321011003221233 |
5 | 202122302141210 |
6 | 5511011230515 |
7 | 631264620263 |
oct | 137105035157 |
9 | 35855646832 |
10 | 12768787055 |
11 | 5462713782 |
12 | 25842a843b |
13 | 12865095cb |
14 | 891b800a3 |
15 | 4eaece4a5 |
hex | 2f9143a6f |
12768787055 has 8 divisors (see below), whose sum is σ = 15324332544. Its totient is φ = 10213837600.
The previous prime is 12768787033. The next prime is 12768787063. The reversal of 12768787055 is 55078786721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12768787055 - 28 = 12768786799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100436 + ... + 188745.
It is an arithmetic number, because the mean of its divisors is an integer number (1915541568).
Almost surely, 212768787055 is an apocalyptic number.
12768787055 is a deficient number, since it is larger than the sum of its proper divisors (2555545489).
12768787055 is an equidigital number, since it uses as much as digits as its factorization.
12768787055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 298017.
The product of its (nonzero) digits is 6585600, while the sum is 56.
The spelling of 12768787055 in words is "twelve billion, seven hundred sixty-eight million, seven hundred eighty-seven thousand, fifty-five".
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