Base | Representation |
---|---|
bin | 10110110111000001… |
… | …00000111101000111 |
3 | 1011200022012011012022 |
4 | 23123200200331013 |
5 | 200113300342422 |
6 | 5345445513355 |
7 | 613061650412 |
oct | 133340407507 |
9 | 34608164168 |
10 | 12272668487 |
11 | 5228668532 |
12 | 246611285b |
13 | 12077b3121 |
14 | 845d18b79 |
15 | 4bc681342 |
hex | 2db820f47 |
12272668487 has 4 divisors (see below), whose sum is σ = 12272892456. Its totient is φ = 12272444520.
The previous prime is 12272668483. The next prime is 12272668489. The reversal of 12272668487 is 78486627221.
12272668487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 12272668487 - 22 = 12272668483 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 (12272668483) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31448 + ... + 159794.
It is an arithmetic number, because the mean of its divisors is an integer number (3068223114).
Almost surely, 212272668487 is an apocalyptic number.
12272668487 is a deficient number, since it is larger than the sum of its proper divisors (223969).
12272668487 is an equidigital number, since it uses as much as digits as its factorization.
12272668487 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 223968.
The product of its digits is 3612672, while the sum is 53.
The spelling of 12272668487 in words is "twelve billion, two hundred seventy-two million, six hundred sixty-eight thousand, four hundred eighty-seven".
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