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12682634720 = 255727920477
BaseRepresentation
bin10111100111111000…
…11010010111100000
31012201212121121010212
423303330122113200
5201433223302340
65454252513252
7626200421300
oct136374322740
935655547125
1012682634720
1154190201a8
12255b47b828
131271703ab2
14884555600
154e3662a65
hex2f3f1a5e0

12682634720 has 144 divisors (see below), whose sum is σ = 35297519040. Its totient is φ = 4293080064.

The previous prime is 12682634711. The next prime is 12682634743. The reversal of 12682634720 is 2743628621.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 609122 + ... + 629598.

It is an arithmetic number, because the mean of its divisors is an integer number (245121660).

Almost surely, 212682634720 is an apocalyptic number.

12682634720 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 12682634720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17648759520).

12682634720 is an abundant number, since it is smaller than the sum of its proper divisors (22614884320).

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

12682634720 is a wasteful number, since it uses less digits than its factorization.

12682634720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20585 (or 20570 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 12682634720 in words is "twelve billion, six hundred eighty-two million, six hundred thirty-four thousand, seven hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 70 79 80 98 112 140 158 160 196 224 245 280 316 392 395 490 553 560 632 784 790 980 1106 1120 1264 1568 1580 1960 2212 2528 2765 3160 3871 3920 4424 5530 6320 7742 7840 8848 11060 12640 15484 17696 19355 20477 22120 30968 38710 40954 44240 61936 77420 81908 88480 102385 123872 143339 154840 163816 204770 286678 309680 327632 409540 573356 619360 655264 716695 819080 1003373 1146712 1433390 1617683 1638160 2006746 2293424 2866780 3235366 3276320 4013492 4586848 5016865 5733560 6470732 8026984 8088415 10033730 11323781 11467120 12941464 16053968 16176830 20067460 22647562 22934240 25882928 32107936 32353660 40134920 45295124 51765856 56618905 64707320 79266467 80269840 90590248 113237810 129414640 158532934 160539680 181180496 226475620 258829280 317065868 362360992 396332335 452951240 634131736 792664670 905902480 1268263472 1585329340 1811804960 2536526944 3170658680 6341317360 12682634720