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12430342423 = 34935617027
BaseRepresentation
bin10111001001110011…
…11111100100010111
31012002021212211011201
423210321333210113
5200424131424143
65413241213331
7620015111242
oct134471774427
935067784151
1012430342423
1152a9671274
1224aaa91247
13123136ac05
1485cc40259
154cb42964d
hex2e4e7f917

12430342423 has 4 divisors (see below), whose sum is σ = 12465959800. Its totient is φ = 12394725048.

The previous prime is 12430342381. The next prime is 12430342429. The reversal of 12430342423 is 32424303421.

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-12430342423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12430342391 and 12430342400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430342429) 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, 17808165 + ... + 17808862.

It is an arithmetic number, because the mean of its divisors is an integer number (3116489950).

Almost surely, 212430342423 is an apocalyptic number.

12430342423 is a deficient number, since it is larger than the sum of its proper divisors (35617377).

12430342423 is an equidigital number, since it uses as much as digits as its factorization.

12430342423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35617376.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12430342423 its reverse (32424303421), we get a palindrome (44854645844).

The spelling of 12430342423 in words is "twelve billion, four hundred thirty million, three hundred forty-two thousand, four hundred twenty-three".

Divisors: 1 349 35617027 12430342423