Base | Representation |
---|---|
bin | 10111011011011011… |
… | …00000011101010101 |
3 | 1012110120211212101010 |
4 | 23231231200131111 |
5 | 201224441023323 |
6 | 5440035322433 |
7 | 623460532101 |
oct | 135555403525 |
9 | 35416755333 |
10 | 12578064213 |
11 | 5374a978a0 |
12 | 2530450419 |
13 | 1255b4cb60 |
14 | 8746d4901 |
15 | 4d93a8c93 |
hex | 2edb60755 |
12578064213 has 16 divisors (see below), whose sum is σ = 19702702656. Its totient is φ = 7036679040.
The previous prime is 12578064139. The next prime is 12578064229. The reversal of 12578064213 is 31246087521.
It is not a de Polignac number, because 12578064213 - 217 = 12577933141 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12578064313) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 14659320 + ... + 14660177.
It is an arithmetic number, because the mean of its divisors is an integer number (1231418916).
Almost surely, 212578064213 is an apocalyptic number.
12578064213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
12578064213 is a deficient number, since it is larger than the sum of its proper divisors (7124638443).
12578064213 is a wasteful number, since it uses less digits than its factorization.
12578064213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29319524.
The product of its (nonzero) digits is 80640, while the sum is 39.
The spelling of 12578064213 in words is "twelve billion, five hundred seventy-eight million, sixty-four thousand, two hundred thirteen".
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