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12103210444 = 22131967182839
BaseRepresentation
bin10110100010110100…
…00101010111001100
31011020111022210110111
423101122011113030
5144241410213234
65320553445404
7605633406553
oct132132052714
934214283414
1012103210444
115150a46166
122419410864
1311ab6606b0
1482b606d9a
154ac85b664
hex2d16855cc

12103210444 has 48 divisors (see below), whose sum is σ = 24368915200. Its totient is φ = 5213077056.

The previous prime is 12103210439. The next prime is 12103210451. The reversal of 12103210444 is 44401230121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25224 + ... + 157615.

Almost surely, 212103210444 is an apocalyptic number.

It is an amenable number.

12103210444 is an abundant number, since it is smaller than the sum of its proper divisors (12265704756).

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

12103210444 is a wasteful number, since it uses less digits than its factorization.

12103210444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182942 (or 182940 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12103210444 its reverse (44401230121), we get a palindrome (56504440565).

The spelling of 12103210444 in words is "twelve billion, one hundred three million, two hundred ten thousand, four hundred forty-four".

Divisors: 1 2 4 13 19 26 38 52 67 76 134 247 268 494 871 988 1273 1742 2546 3484 5092 16549 33098 66196 182839 365678 731356 2376907 3473941 4753814 6947882 9507628 12250213 13895764 24500426 45161233 49000852 90322466 159252769 180644932 232754047 318505538 465508094 637011076 931016188 3025802611 6051605222 12103210444