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12444422234430 = 2356734611788863
BaseRepresentation
bin1011010100010111000101…
…0111011110000100111110
31122001200020011220210111010
42311011301113132010332
53112342134043000210
642244515540540050
72423036245456044
oct265056127360476
948050204823433
1012444422234430
113a68716a2043a
12148b98b9b1626
136c3672329934
143104557b4394
15168a9467c920
hexb51715de13e

12444422234430 has 64 divisors (see below), whose sum is σ = 30321158934528. Its totient is φ = 3268036210560.

The previous prime is 12444422234411. The next prime is 12444422234441. The reversal of 12444422234430 is 3443222444421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6062179 + ... + 7851041.

It is an arithmetic number, because the mean of its divisors is an integer number (473768108352).

Almost surely, 212444422234430 is an apocalyptic number.

12444422234430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12444422234430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15160579467264).

12444422234430 is an abundant number, since it is smaller than the sum of its proper divisors (17876736700098).

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

12444422234430 is a wasteful number, since it uses less digits than its factorization.

12444422234430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792401.

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 12444422234430 its reverse (3443222444421), we get a palindrome (15887644678851).

The spelling of 12444422234430 in words is "twelve trillion, four hundred forty-four billion, four hundred twenty-two million, two hundred thirty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 67 134 201 335 402 670 1005 2010 3461 6922 10383 17305 20766 34610 51915 103830 231887 463774 695661 1159435 1391322 1788863 2318870 3478305 3577726 5366589 6956610 8944315 10733178 17888630 26832945 53665890 119853821 239707642 359561463 599269105 719122926 1198538210 1797807315 3595614630 6191254843 12382509686 18573764529 30956274215 37147529058 61912548430 92868822645 185737645290 414814074481 829628148962 1244442223443 2074070372405 2488884446886 4148140744810 6222211117215 12444422234430