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12678922132 = 2223491280681
BaseRepresentation
bin10111100111011100…
…01111111110010100
31012201121121222102121
423303232033332110
5201431301002012
65454041145324
7626124026362
oct136356177624
935647558377
1012678922132
115416a14948
12255a18b244
131270a03cb6
14883c6a632
154e317ca07
hex2f3b8ff94

12678922132 has 24 divisors (see below), whose sum is σ = 23200051392. Its totient is φ = 6051460800.

The previous prime is 12678922019. The next prime is 12678922153. The reversal of 12678922132 is 23122987621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95169 + ... + 185512.

It is an arithmetic number, because the mean of its divisors is an integer number (966668808).

Almost surely, 212678922132 is an apocalyptic number.

It is an amenable number.

12678922132 is a deficient number, since it is larger than the sum of its proper divisors (10521129260).

12678922132 is a wasteful number, since it uses less digits than its factorization.

12678922132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281199 (or 281197 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The spelling of 12678922132 in words is "twelve billion, six hundred seventy-eight million, nine hundred twenty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 23 46 92 491 982 1964 11293 22586 45172 280681 561362 1122724 6455663 12911326 25822652 137814371 275628742 551257484 3169730533 6339461066 12678922132