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12303330133 = 28143784093
BaseRepresentation
bin10110111010101010…
…11110101101010101
31011202102212221001211
423131111132231111
5200144123031013
65352503021421
7613613403103
oct133525365525
934672787054
1012303330133
115243a00036
12247443a871
131210c5a303
1484a01ac73
154c01db23d
hex2dd55eb55

12303330133 has 4 divisors (see below), whose sum is σ = 12347114508. Its totient is φ = 12259545760.

The previous prime is 12303330113. The next prime is 12303330173. The reversal of 12303330133 is 33103330321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33103330321 = 291141494149.

It can be written as a sum of positive squares in 2 ways, for example, as 6137625649 + 6165704484 = 78343^2 + 78522^2 .

It is a cyclic number.

It is not a de Polignac number, because 12303330133 - 25 = 12303330101 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 (12303330103) 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, 21891766 + ... + 21892327.

It is an arithmetic number, because the mean of its divisors is an integer number (3086778627).

Almost surely, 212303330133 is an apocalyptic number.

It is an amenable number.

12303330133 is a deficient number, since it is larger than the sum of its proper divisors (43784375).

12303330133 is an equidigital number, since it uses as much as digits as its factorization.

12303330133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43784374.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 12303330133 its reverse (33103330321), we get a palindrome (45406660454).

The spelling of 12303330133 in words is "twelve billion, three hundred three million, three hundred thirty thousand, one hundred thirty-three".

Divisors: 1 281 43784093 12303330133