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13131251401140 = 22325737649130649
BaseRepresentation
bin1011111100010101101110…
…0100110100000110110100
31201111100001111011112112200
42333011123210310012310
53210120300324314030
643532225201344500
72523462436165515
oct277053344640664
951440044145480
1013131251401140
114202a290a3044
121580b11638130
1374336bbb04a2
143357ad7a0a0c
1517b8922dad60
hexbf15b9341b4

13131251401140 has 144 divisors (see below), whose sum is σ = 40382686890000. Its totient is φ = 3453221044224.

The previous prime is 13131251401139. The next prime is 13131251401141. The reversal of 13131251401140 is 4110415213131.

13131251401140 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 1 + 2 + 514 + 0 + 1 + 140 = 666.

It is an interprime number because it is at equal distance from previous prime (13131251401139) and next prime (13131251401141).

It can be written as a sum of positive squares in 8 ways, for example, as 191245283856 + 12940006117284 = 437316^2 + 3597222^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131251401141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100442536 + ... + 100573184.

It is an arithmetic number, because the mean of its divisors is an integer number (280435325625).

Almost surely, 213131251401140 is an apocalyptic number.

13131251401140 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 13131251401140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20191343445000).

13131251401140 is an abundant number, since it is smaller than the sum of its proper divisors (27251435488860).

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

13131251401140 is a wasteful number, since it uses less digits than its factorization.

13131251401140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138386 (or 138381 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 13131251401140 its reverse (4110415213131), we get a palindrome (17241666614271).

The spelling of 13131251401140 in words is "thirteen trillion, one hundred thirty-one billion, two hundred fifty-one million, four hundred one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 73 90 146 180 219 292 365 438 657 730 876 1095 1314 1460 2190 2628 3285 4380 6570 7649 13140 15298 22947 30596 38245 45894 68841 76490 91788 114735 130649 137682 152980 229470 261298 275364 344205 391947 458940 522596 558377 653245 688410 783894 1116754 1175841 1306490 1376820 1567788 1675131 1959735 2233508 2351682 2612980 2791885 3350262 3919470 4703364 5025393 5583770 5879205 6700524 7838940 8375655 9537377 10050786 11167540 11758410 16751310 19074754 20101572 23516820 25126965 28612131 33502620 38149508 47686885 50253930 57224262 85836393 95373770 100507860 114448524 143060655 171672786 190747540 286121310 343345572 429181965 572242620 858363930 999334201 1716727860 1998668402 2998002603 3997336804 4996671005 5996005206 8994007809 9993342010 11992010412 14990013015 17988015618 19986684020 29980026030 35976031236 44970039045 59960052060 72951396673 89940078090 145902793346 179880156180 218854190019 291805586692 364756983365 437708380038 656562570057 729513966730 875416760076 1094270950095 1313125140114 1459027933460 2188541900190 2626250280228 3282812850285 4377083800380 6565625700570 13131251401140