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12122004444 = 2231191833367
BaseRepresentation
bin10110100101000011…
…10001101111011100
31011021210200121222120
423102201301233130
5144311213120234
65322504342540
7606252223554
oct132241615734
934253617876
1012122004444
1151606123a0
122423774a50
1311b2510bc4
1482dcda164
154ae320049
hex2d2871bdc

12122004444 has 24 divisors (see below), whose sum is σ = 30856011648. Its totient is φ = 3673334640.

The previous prime is 12122004443. The next prime is 12122004463. The reversal of 12122004444 is 44440022121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122004443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45916552 + ... + 45916815.

It is an arithmetic number, because the mean of its divisors is an integer number (1285667152).

Almost surely, 212122004444 is an apocalyptic number.

It is an amenable number.

12122004444 is an abundant number, since it is smaller than the sum of its proper divisors (18734007204).

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

12122004444 is a wasteful number, since it uses less digits than its factorization.

12122004444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91833385 (or 91833383 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 12122004444 its reverse (44440022121), we get a palindrome (56562026565).

The spelling of 12122004444 in words is "twelve billion, one hundred twenty-two million, four thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 91833367 183666734 275500101 367333468 551000202 1010167037 1102000404 2020334074 3030501111 4040668148 6061002222 12122004444