Base | Representation |
---|---|
bin | 10111111111101010… |
… | …11001101011101001 |
3 | 1020020202222200022002 |
4 | 23333311121223221 |
5 | 202340310422442 |
6 | 5530140340345 |
7 | 634142146235 |
oct | 137765315351 |
9 | 36222880262 |
10 | 12882123497 |
11 | 5510694061 |
12 | 25b62446b5 |
13 | 12a3b3c4a9 |
14 | 8a2c435c5 |
15 | 505e1a732 |
hex | 2ffd59ae9 |
12882123497 has 4 divisors (see below), whose sum is σ = 12928629636. Its totient is φ = 12835617360.
The previous prime is 12882123487. The next prime is 12882123503. The reversal of 12882123497 is 79432128821.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 3648643216 + 9233480281 = 60404^2 + 96091^2 .
It is a cyclic number.
It is not a de Polignac number, because 12882123497 - 212 = 12882119401 is a prime.
It is a super-3 number, since 3×128821234973 (a number of 31 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12882123427) 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, 23252654 + ... + 23253207.
It is an arithmetic number, because the mean of its divisors is an integer number (3232157409).
Almost surely, 212882123497 is an apocalyptic number.
It is an amenable number.
12882123497 is a deficient number, since it is larger than the sum of its proper divisors (46506139).
12882123497 is an equidigital number, since it uses as much as digits as its factorization.
12882123497 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46506138.
The product of its digits is 387072, while the sum is 47.
The spelling of 12882123497 in words is "twelve billion, eight hundred eighty-two million, one hundred twenty-three thousand, four hundred ninety-seven".
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