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12244123311 = 37718212021
BaseRepresentation
bin10110110011100111…
…00111111010101111
31011121022110220120120
423121303213322233
5200033443421221
65342550020023
7612264221340
oct133163477257
934538426516
1012244123311
115213541082
122458647613
1312018ca3a4
148422080c7
154b9de35c6
hex2d9ce7eaf

12244123311 has 16 divisors (see below), whose sum is σ = 18920498688. Its totient is φ = 6898096800.

The previous prime is 12244123277. The next prime is 12244123327. The reversal of 12244123311 is 11332144221.

It is not a de Polignac number, because 12244123311 - 210 = 12244122287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12244123391) 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 15 ways as a sum of consecutive naturals, for example, 4104520 + ... + 4107501.

It is an arithmetic number, because the mean of its divisors is an integer number (1182531168).

Almost surely, 212244123311 is an apocalyptic number.

12244123311 is a deficient number, since it is larger than the sum of its proper divisors (6676375377).

12244123311 is an equidigital number, since it uses as much as digits as its factorization.

12244123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8212102.

The product of its digits is 1152, while the sum is 24.

Adding to 12244123311 its reverse (11332144221), we get a palindrome (23576267532).

The spelling of 12244123311 in words is "twelve billion, two hundred forty-four million, one hundred twenty-three thousand, three hundred eleven".

Divisors: 1 3 7 21 71 213 497 1491 8212021 24636063 57484147 172452441 583053491 1749160473 4081374437 12244123311