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12322431237 = 394716132689
BaseRepresentation
bin10110111100111100…
…10110000100000101
31011210202211100212010
423132132112010011
5200214020244422
65354424244433
7614234636334
oct133636260405
934722740763
1012322431237
115253766a76
12247a910719
131214bb753c
1484c78dd1b
154c1c10b0c
hex2de796105

12322431237 has 16 divisors (see below), whose sum is σ = 16463574720. Its totient is φ = 8198141952.

The previous prime is 12322431227. The next prime is 12322431257. The reversal of 12322431237 is 73213422321.

12322431237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12322431237 - 215 = 12322398469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322431227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4581189 + ... + 4583877.

It is an arithmetic number, because the mean of its divisors is an integer number (1028973420).

Almost surely, 212322431237 is an apocalyptic number.

It is an amenable number.

12322431237 is a deficient number, since it is larger than the sum of its proper divisors (4141143483).

12322431237 is a wasteful number, since it uses less digits than its factorization.

12322431237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252.

The product of its digits is 12096, while the sum is 30.

Adding to 12322431237 its reverse (73213422321), we get a palindrome (85535853558).

The spelling of 12322431237 in words is "twelve billion, three hundred twenty-two million, four hundred thirty-one thousand, two hundred thirty-seven".

Divisors: 1 3 947 1613 2689 2841 4839 8067 1527511 2546483 4337357 4582533 7639449 13012071 4107477079 12322431237