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12544055330 = 25233103099
BaseRepresentation
bin10111010111010111…
…10001100000100010
31012101012212000221212
423223223301200202
5201142234232310
65432422350122
7622565465612
oct135353614042
935335760855
1012544055330
115357879484
122520b8b342
13124baa3261
1486dda0a42
154d63dc205
hex2ebaf1822

12544055330 has 32 divisors (see below), whose sum is σ = 23605776000. Its totient is φ = 4799418096.

The previous prime is 12544055309. The next prime is 12544055339. The reversal of 12544055330 is 3355044521.

It is a happy number.

12544055330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12544055339) 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, 70121 + ... + 173219.

It is an arithmetic number, because the mean of its divisors is an integer number (737680500).

Almost surely, 212544055330 is an apocalyptic number.

12544055330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12544055330 is a deficient number, since it is larger than the sum of its proper divisors (11061720670).

12544055330 is an equidigital number, since it uses as much as digits as its factorization.

12544055330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103175 (or 103129 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 12544055330 its reverse (3355044521), we get a palindrome (15899099851).

The spelling of 12544055330 in words is "twelve billion, five hundred forty-four million, fifty-five thousand, three hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 529 1058 2645 5290 12167 24334 60835 103099 121670 206198 515495 1030990 2371277 4742554 11856385 23712770 54539371 109078742 272696855 545393710 1254405533 2508811066 6272027665 12544055330