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12238438822 = 217675372449
BaseRepresentation
bin10110110010111011…
…11100000110100110
31011120220210002220221
423121131330012212
5200031020020242
65342224114554
7612165004441
oct133135740646
934526702827
1012238438822
115210309255
122456765a5a
131200689b9c
14841568658
154b966e167
hex2d977c1a6

12238438822 has 16 divisors (see below), whose sum is σ = 19727636400. Its totient is φ = 5673305088.

The previous prime is 12238438801. The next prime is 12238438837. The reversal of 12238438822 is 22883483221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2683947 + ... + 2688502.

It is an arithmetic number, because the mean of its divisors is an integer number (1232977275).

Almost surely, 212238438822 is an apocalyptic number.

12238438822 is a deficient number, since it is larger than the sum of its proper divisors (7489197578).

12238438822 is a wasteful number, since it uses less digits than its factorization.

12238438822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372535.

The product of its digits is 294912, while the sum is 43.

The spelling of 12238438822 in words is "twelve billion, two hundred thirty-eight million, four hundred thirty-eight thousand, eight hundred twenty-two".

Divisors: 1 2 17 34 67 134 1139 2278 5372449 10744898 91331633 182663266 359954083 719908166 6119219411 12238438822