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12800741011056 = 2433611633329741
BaseRepresentation
bin1011101001000110011110…
…0111101110111001110000
31200022201221122120002212000
42322101213213232321300
53134211404144323211
643120325040534000
72460552203214435
oct272214747567160
950281848502760
1012800741011056
11409584464a129
121528a52321300
1371b14903742b
143237b8515b8c
15172e9b2d6656
hexba4679eee70

12800741011056 has 160 divisors (see below), whose sum is σ = 37348752056640. Its totient is φ = 4196566195200.

The previous prime is 12800741011013. The next prime is 12800741011061. The reversal of 12800741011056 is 65011014700821.

12800741011056 is a `hidden beast` number, since 1 + 2 + 80 + 0 + 7 + 410 + 110 + 56 = 666.

It is a super-2 number, since 2×128007410110562 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12800741011056.

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, 430392346 + ... + 430422086.

It is an arithmetic number, because the mean of its divisors is an integer number (233429700354).

Almost surely, 212800741011056 is an apocalyptic number.

12800741011056 is a gapful number since it is divisible by the number (16) 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 12800741011056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18674376028320).

12800741011056 is an abundant number, since it is smaller than the sum of its proper divisors (24548011045584).

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

12800741011056 is a wasteful number, since it uses less digits than its factorization.

12800741011056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46152 (or 46140 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

Adding to 12800741011056 its reverse (65011014700821), we get a palindrome (77811755711877).

The spelling of 12800741011056 in words is "twelve trillion, eight hundred billion, seven hundred forty-one million, eleven thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 61 72 108 122 144 183 216 244 366 432 488 549 732 976 1098 1464 1647 2196 2928 3294 4392 6588 8784 13176 16333 26352 29741 32666 48999 59482 65332 89223 97998 118964 130664 146997 178446 195996 237928 261328 267669 293994 356892 391992 440991 475856 535338 587988 713784 783984 803007 881982 996313 1070676 1175976 1427568 1606014 1763964 1814201 1992626 2141352 2351952 2988939 3212028 3527928 3628402 3985252 4282704 5442603 5977878 6424056 7055856 7256804 7970504 8966817 10885206 11955756 12848112 14513608 15941008 16327809 17933634 21770412 23911512 26900451 29027216 32655618 35867268 43540824 47823024 48983427 53800902 65311236 71734536 87081648 97966854 107601804 130622472 143469072 195933708 215203608 261244944 391867416 430407216 485759753 783734832 971519506 1457279259 1943039012 2914558518 3886078024 4371837777 5829117036 7772156048 8743675554 11658234072 13115513331 17487351108 23316468144 26231026662 29631344933 34974702216 52462053324 59262689866 69949404432 88894034799 104924106648 118525379732 177788069598 209848213296 237050759464 266682104397 355576139196 474101518928 533364208794 711152278392 800046313191 1066728417588 1422304556784 1600092626382 2133456835176 3200185252764 4266913670352 6400370505528 12800741011056