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12302403143 = 17876884389
BaseRepresentation
bin10110111010100011…
…11100011001000111
31011202101010211110212
423131101330121013
5200143403400033
65352431110035
7613602462362
oct133521743107
934671124425
1012302403143
115243427628
12247407231b
1312109c43b4
14849c590d9
154c00a6748
hex2dd47c647

12302403143 has 4 divisors (see below), whose sum is σ = 12309289320. Its totient is φ = 12295516968.

The previous prime is 12302403101. The next prime is 12302403149. The reversal of 12302403143 is 34130420321.

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 12302403143 - 218 = 12302140999 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 (12302403149) 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, 3440408 + ... + 3443981.

It is an arithmetic number, because the mean of its divisors is an integer number (3077322330).

Almost surely, 212302403143 is an apocalyptic number.

12302403143 is a deficient number, since it is larger than the sum of its proper divisors (6886177).

12302403143 is an equidigital number, since it uses as much as digits as its factorization.

12302403143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886176.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12302403143 its reverse (34130420321), we get a palindrome (46432823464).

The spelling of 12302403143 in words is "twelve billion, three hundred two million, four hundred three thousand, one hundred forty-three".

Divisors: 1 1787 6884389 12302403143