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12343031344 = 247110205637
BaseRepresentation
bin10110111111011001…
…11011011000110000
31011212012120221220001
423133230323120300
5200234304000334
65400441555344
7614605015060
oct133754733060
934765527801
1012343031344
115264357156
1224857a5b54
13121924ab57
148513d33a0
154c392e714
hex2dfb3b630

12343031344 has 20 divisors (see below), whose sum is σ = 27330998224. Its totient is φ = 5289870528.

The previous prime is 12343031341. The next prime is 12343031353. The reversal of 12343031344 is 44313034321.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (12343031341) 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, 55102707 + ... + 55102930.

Almost surely, 212343031344 is an apocalyptic number.

12343031344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12343031344 is an abundant number, since it is smaller than the sum of its proper divisors (14987966880).

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

12343031344 is a wasteful number, since it uses less digits than its factorization.

12343031344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110205652 (or 110205646 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12343031344 its reverse (44313034321), we get a palindrome (56656065665).

The spelling of 12343031344 in words is "twelve billion, three hundred forty-three million, thirty-one thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 110205637 220411274 440822548 771439459 881645096 1542878918 1763290192 3085757836 6171515672 12343031344