Base | Representation |
---|---|
bin | 11000011100011111… |
… | …00011011111111111 |
3 | 1020212121212012002122 |
4 | 30032033203133333 |
5 | 203334202013404 |
6 | 10010133513155 |
7 | 643135654622 |
oct | 141617433777 |
9 | 36777765078 |
10 | 13123860479 |
11 | 5625093694 |
12 | 26631a27bb |
13 | 1311c4ab22 |
14 | 8c6dabdb9 |
15 | 51c26b3be |
hex | 30e3e37ff |
13123860479 has 4 divisors (see below), whose sum is σ = 13124091960. Its totient is φ = 13123629000.
The previous prime is 13123860377. The next prime is 13123860511. The reversal of 13123860479 is 97406832131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13123860479 - 28 = 13123860223 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13123860679) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33137 + ... + 165365.
It is an arithmetic number, because the mean of its divisors is an integer number (3281022990).
Almost surely, 213123860479 is an apocalyptic number.
13123860479 is a deficient number, since it is larger than the sum of its proper divisors (231481).
13123860479 is an equidigital number, since it uses as much as digits as its factorization.
13123860479 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 231480.
The product of its (nonzero) digits is 217728, while the sum is 44.
The spelling of 13123860479 in words is "thirteen billion, one hundred twenty-three million, eight hundred sixty thousand, four hundred seventy-nine".
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