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12744120000 = 26354611741
BaseRepresentation
bin10111101111001101…
…11101011011000000
31012220011022101002110
423313212331123000
5202044443320000
65504330415320
7630545142543
oct136746753300
935804271073
1012744120000
11544a7a5a87
122577b91540
131281380b11
1488c79c85a
154e8c5a850
hex2f79bd6c0

12744120000 has 280 divisors, whose sum is σ = 42850370992. Its totient is φ = 3340800000.

The previous prime is 12744119987. The next prime is 12744120041. The reversal of 12744120000 is 2144721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7319130 + ... + 7320870.

Almost surely, 212744120000 is an apocalyptic number.

12744120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12744120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21425185496).

12744120000 is an abundant number, since it is smaller than the sum of its proper divisors (30106250992).

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

12744120000 is an equidigital number, since it uses as much as digits as its factorization.

12744120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 12744120000 its reverse (2144721), we get a palindrome (12746264721).

The spelling of 12744120000 in words is "twelve billion, seven hundred forty-four million, one hundred twenty thousand".