Base | Representation |
---|---|
bin | 11000010011111000… |
… | …01010011111111111 |
3 | 1020200121000110021212 |
4 | 30021330022133333 |
5 | 203212211342404 |
6 | 5555034315035 |
7 | 641301231413 |
oct | 141174123777 |
9 | 36617013255 |
10 | 13051668479 |
11 | 5598365783 |
12 | 2642b88a7b |
13 | 12cccc2675 |
14 | 8bb578d43 |
15 | 515c5b06e |
hex | 309f0a7ff |
13051668479 has 4 divisors (see below), whose sum is σ = 13057124976. Its totient is φ = 13046211984.
The previous prime is 13051668449. The next prime is 13051668493. The reversal of 13051668479 is 97486615031.
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 13051668479 - 232 = 8756701183 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 (13051668449) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2724659 + ... + 2729444.
It is an arithmetic number, because the mean of its divisors is an integer number (3264281244).
Almost surely, 213051668479 is an apocalyptic number.
13051668479 is a deficient number, since it is larger than the sum of its proper divisors (5456497).
13051668479 is an equidigital number, since it uses as much as digits as its factorization.
13051668479 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5456496.
The product of its (nonzero) digits is 1088640, while the sum is 50.
The spelling of 13051668479 in words is "thirteen billion, fifty-one million, six hundred sixty-eight thousand, four hundred seventy-nine".
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