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12744163424 = 251723426771
BaseRepresentation
bin10111101111001110…
…01000000001100000
31012220011101120122202
423313213020001200
5202100001212144
65504331352332
7630545413256
oct136747100140
935804346582
1012744163424
11544a825673
122577bb26a8
131281397805
1488c7b05d6
154e8c6864e
hex2f79c8060

12744163424 has 24 divisors (see below), whose sum is σ = 26565959448. Its totient is φ = 5997253120.

The previous prime is 12744163423. The next prime is 12744163429. The reversal of 12744163424 is 42436144721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744163423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11712842 + ... + 11713929.

It is an arithmetic number, because the mean of its divisors is an integer number (1106914977).

Almost surely, 212744163424 is an apocalyptic number.

It is an amenable number.

12744163424 is an abundant number, since it is smaller than the sum of its proper divisors (13821796024).

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

12744163424 is a wasteful number, since it uses less digits than its factorization.

12744163424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23426798 (or 23426790 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The spelling of 12744163424 in words is "twelve billion, seven hundred forty-four million, one hundred sixty-three thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 23426771 46853542 93707084 187414168 374828336 398255107 749656672 796510214 1593020428 3186040856 6372081712 12744163424