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12303043444 = 2235961913841
BaseRepresentation
bin10110111010101000…
…11000101101110100
31011202102100100210201
423131110120231310
5200144034342234
65352452530244
7613611100216
oct133524305564
934672310721
1012303043444
1152438246aa
122474320984
131210b89983
14849d845b6
154c0181314
hex2dd518b74

12303043444 has 24 divisors (see below), whose sum is σ = 21626740800. Its totient is φ = 6124033920.

The previous prime is 12303043349. The next prime is 12303043447. The reversal of 12303043444 is 44434030321.

It is a super-2 number, since 2×123030434442 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303043447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881964 + ... + 895804.

It is an arithmetic number, because the mean of its divisors is an integer number (901114200).

Almost surely, 212303043444 is an apocalyptic number.

It is an amenable number.

12303043444 is a deficient number, since it is larger than the sum of its proper divisors (9323697356).

12303043444 is a wasteful number, since it uses less digits than its factorization.

12303043444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14823 (or 14821 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12303043444 its reverse (44434030321), we get a palindrome (56737073765).

The spelling of 12303043444 in words is "twelve billion, three hundred three million, forty-three thousand, four hundred forty-four".

Divisors: 1 2 4 359 619 718 1238 1436 2476 13841 27682 55364 222221 444442 888884 4968919 8567579 9937838 17135158 19875676 34270316 3075760861 6151521722 12303043444