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12115214176 = 251329123111
BaseRepresentation
bin10110100100001111…
…10111111101100000
31011021022220122111011
423102013313331200
5144302443323201
65322103030304
7606140423062
oct132207677540
934238818434
1012115214176
1151577a47aa
12242143b394
1311b0ca42b0
1482d04d732
154ad92d151
hex2d21f7f60

12115214176 has 24 divisors (see below), whose sum is σ = 25686584784. Its totient is φ = 5591637120.

The previous prime is 12115214173. The next prime is 12115214183. The reversal of 12115214176 is 67141251121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115214171) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14561140 + ... + 14561971.

It is an arithmetic number, because the mean of its divisors is an integer number (1070274366).

Almost surely, 212115214176 is an apocalyptic number.

12115214176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12115214176 is an abundant number, since it is smaller than the sum of its proper divisors (13571370608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12115214176 is a wasteful number, since it uses less digits than its factorization.

12115214176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29123134 (or 29123126 counting only the distinct ones).

The product of its digits is 3360, while the sum is 31.

Adding to 12115214176 its reverse (67141251121), we get a palindrome (79256465297).

The spelling of 12115214176 in words is "twelve billion, one hundred fifteen million, two hundred fourteen thousand, one hundred seventy-six".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 29123111 58246222 116492444 232984888 378600443 465969776 757200886 931939552 1514401772 3028803544 6057607088 12115214176