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12238584247 = 197336724043
BaseRepresentation
bin10110110010111100…
…11111100110110111
31011120221001111102001
423121132133212313
5200031034143442
65342231200131
7612166151431
oct133136374667
934527044361
1012238584247
1152103a853a
122456816047
13120070b136
148415a5651
154b969c2b7
hex2d979f9b7

12238584247 has 16 divisors (see below), whose sum is σ = 13095324160. Its totient is φ = 11403986112.

The previous prime is 12238584179. The next prime is 12238584251. The reversal of 12238584247 is 74248583221.

It is a cyclic number.

It is not a de Polignac number, because 12238584247 - 223 = 12230195639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12238584197 and 12238584206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238584047) 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, 497008 + ... + 521050.

It is an arithmetic number, because the mean of its divisors is an integer number (818457760).

Almost surely, 212238584247 is an apocalyptic number.

12238584247 is a deficient number, since it is larger than the sum of its proper divisors (856739913).

12238584247 is a wasteful number, since it uses less digits than its factorization.

12238584247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24502.

The product of its digits is 860160, while the sum is 46.

The spelling of 12238584247 in words is "twelve billion, two hundred thirty-eight million, five hundred eighty-four thousand, two hundred forty-seven".

Divisors: 1 19 73 367 1387 6973 24043 26791 456817 509029 1755139 8823781 33347641 167651839 644136013 12238584247