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12443044332 = 2234324114427
BaseRepresentation
bin10111001011010100…
…11100100111101100
31012010011210010220210
423211222130213230
5200440404404312
65414413342420
7620231063115
oct134552344754
935104703823
1012443044332
115305857414
1224b3197a10
131233b97534
148607c920c
154cc5d7e3c
hex2e5a9c9ec

12443044332 has 24 divisors (see below), whose sum is σ = 29708975296. Its totient is φ = 4051223568.

The previous prime is 12443044331. The next prime is 12443044373. The reversal of 12443044332 is 23344034421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12443044332.

It is not an unprimeable number, because it can be changed into a prime (12443044331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12056698 + ... + 12057729.

Almost surely, 212443044332 is an apocalyptic number.

12443044332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12443044332 is an abundant number, since it is smaller than the sum of its proper divisors (17265930964).

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

12443044332 is a wasteful number, since it uses less digits than its factorization.

12443044332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24114477 (or 24114475 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 12443044332 its reverse (23344034421), we get a palindrome (35787078753).

The spelling of 12443044332 in words is "twelve billion, four hundred forty-three million, forty-four thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 24114427 48228854 72343281 96457708 144686562 289373124 1036920361 2073840722 3110761083 4147681444 6221522166 12443044332