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12443422313 = 78832013173
BaseRepresentation
bin10111001011010111…
…11000111001101001
31012010012111100102002
423211223320321221
5200441004003223
65414425420345
7620234226110
oct134553707151
935105440362
1012443422313
115305a953a3
1224b333a6b5
131233c9a5aa
14860886c77
154cc65ee28
hex2e5af8e69

12443422313 has 8 divisors (see below), whose sum is σ = 14237166528. Its totient is φ = 10653706224.

The previous prime is 12443422279. The next prime is 12443422331. The reversal of 12443422313 is 31322434421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12443422313 - 216 = 12443356777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443422213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000406 + ... + 1012767.

It is an arithmetic number, because the mean of its divisors is an integer number (1779645816).

Almost surely, 212443422313 is an apocalyptic number.

It is an amenable number.

12443422313 is a deficient number, since it is larger than the sum of its proper divisors (1793744215).

12443422313 is an equidigital number, since it uses as much as digits as its factorization.

12443422313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014063.

The product of its digits is 13824, while the sum is 29.

Adding to 12443422313 its reverse (31322434421), we get a palindrome (43765856734).

The spelling of 12443422313 in words is "twelve billion, four hundred forty-three million, four hundred twenty-two thousand, three hundred thirteen".

Divisors: 1 7 883 6181 2013173 14092211 1777631759 12443422313