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12302442311 = 73168526607
BaseRepresentation
bin10110111010100100…
…00101111101000111
31011202101012211012112
423131102011331013
5200143411123221
65352432011235
7613603014515
oct133522057507
934671184175
1012302442311
115243453aa5
122474090b1b
131210a09183
14849c694b5
154c00b315b
hex2dd485f47

12302442311 has 4 divisors (see below), whose sum is σ = 12470968992. Its totient is φ = 12133915632.

The previous prime is 12302442233. The next prime is 12302442337. The reversal of 12302442311 is 11324420321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12302442311 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 (12302442011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84263231 + ... + 84263376.

It is an arithmetic number, because the mean of its divisors is an integer number (3117742248).

Almost surely, 212302442311 is an apocalyptic number.

12302442311 is a deficient number, since it is larger than the sum of its proper divisors (168526681).

12302442311 is an equidigital number, since it uses as much as digits as its factorization.

12302442311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168526680.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12302442311 its reverse (11324420321), we get a palindrome (23626862632).

The spelling of 12302442311 in words is "twelve billion, three hundred two million, four hundred forty-two thousand, three hundred eleven".

Divisors: 1 73 168526607 12302442311