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12232421243 = 72799762417
BaseRepresentation
bin10110110010001101…
…11110111101111011
31011120111110101100122
423121012332331323
5200022444434433
65341451123455
7612062602460
oct133106767573
934514411318
1012232421243
115207979149
12245474358b
1311cc360ba3
1484083d667
154b8d81198
hex2d91bef7b

12232421243 has 8 divisors (see below), whose sum is σ = 13980633312. Its totient is φ = 10484390016.

The previous prime is 12232421239. The next prime is 12232421251. The reversal of 12232421243 is 34212423221.

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

It is a cyclic number.

It is not a de Polignac number, because 12232421243 - 22 = 12232421239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12232421543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164771 + ... + 227187.

It is an arithmetic number, because the mean of its divisors is an integer number (1747579164).

Almost surely, 212232421243 is an apocalyptic number.

12232421243 is a deficient number, since it is larger than the sum of its proper divisors (1748212069).

12232421243 is an equidigital number, since it uses as much as digits as its factorization.

12232421243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90421.

The product of its digits is 4608, while the sum is 26.

Adding to 12232421243 its reverse (34212423221), we get a palindrome (46444844464).

The spelling of 12232421243 in words is "twelve billion, two hundred thirty-two million, four hundred twenty-one thousand, two hundred forty-three".

Divisors: 1 7 27997 62417 195979 436919 1747488749 12232421243