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12444104340 = 22325194188747
BaseRepresentation
bin10111001011011100…
…11111011010010100
31012010020202222222100
423211232133122110
5200441142314330
65414452202100
7620243066403
oct134556373224
935106688870
1012444104340
115306410858
1224b3609330
131234178b65
148609c363a
154cc747060
hex2e5b9f694

12444104340 has 144 divisors (see below), whose sum is σ = 40703382720. Its totient is φ = 3067061760.

The previous prime is 12444104317. The next prime is 12444104441. The reversal of 12444104340 is 4340144421.

12444104340 is a `hidden beast` number, since 1 + 244 + 410 + 4 + 3 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95847 + ... + 184593.

It is an arithmetic number, because the mean of its divisors is an integer number (282662380).

Almost surely, 212444104340 is an apocalyptic number.

12444104340 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 12444104340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20351691360).

12444104340 is an abundant number, since it is smaller than the sum of its proper divisors (28259278380).

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

12444104340 is a wasteful number, since it uses less digits than its factorization.

12444104340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88822 (or 88817 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 12444104340 its reverse (4340144421), we get a palindrome (16784248761).

The spelling of 12444104340 in words is "twelve billion, four hundred forty-four million, one hundred four thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 41 45 57 60 76 82 90 95 114 123 164 171 180 190 205 228 246 285 342 369 380 410 492 570 615 684 738 779 820 855 1140 1230 1476 1558 1710 1845 2337 2460 3116 3420 3690 3895 4674 7011 7380 7790 9348 11685 14022 15580 23370 28044 35055 46740 70110 88747 140220 177494 266241 354988 443735 532482 798723 887470 1064964 1331205 1597446 1686193 1774940 2662410 3194892 3372386 3638627 3993615 5058579 5324820 6744772 7277254 7987230 8430965 10117158 10915881 14554508 15175737 15974460 16861930 18193135 20234316 21831762 25292895 30351474 32747643 33723860 36386270 43663524 50585790 54579405 60702948 65495286 69133913 72772540 75878685 101171580 109158810 130990572 138267826 151757370 163738215 207401739 218317620 276535652 303514740 327476430 345669565 414803478 622205217 654952860 691339130 829606956 1037008695 1244410434 1382678260 2074017390 2488820868 3111026085 4148034780 6222052170 12444104340