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54512042451405 = 35711235669361973
BaseRepresentation
bin11000110010100000100101…
…11011010010000111001101
321011000022002222001121001020
430121100102323102013031
524121111130331421110
6311534253034104353
714324236141435440
oct1431202273220715
9234008088047036
1054512042451405
1116407477924130
12614497087b0b9
132455604545566
14d6657b279657
15647eb3aa6d70
hex319412ed21cd

54512042451405 has 128 divisors (see below), whose sum is σ = 113489100103680. Its totient is φ = 21665501045760.

The previous prime is 54512042451379. The next prime is 54512042451413. The reversal of 54512042451405 is 50415424021545.

It is not a de Polignac number, because 54512042451405 - 28 = 54512042451149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 150415999 + ... + 150777971.

It is an arithmetic number, because the mean of its divisors is an integer number (886633594560).

Almost surely, 254512042451405 is an apocalyptic number.

54512042451405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54512042451405 is an abundant number, since it is smaller than the sum of its proper divisors (58977057652275).

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

54512042451405 is a wasteful number, since it uses less digits than its factorization.

54512042451405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367691.

The product of its (nonzero) digits is 640000, while the sum is 42.

The spelling of 54512042451405 in words is "fifty-four trillion, five hundred twelve billion, forty-two million, four hundred fifty-one thousand, four hundred five".

Divisors: 1 3 5 7 11 15 21 23 33 35 55 69 77 105 115 161 165 231 253 345 385 483 759 805 1155 1265 1771 2415 3795 5313 5669 8855 17007 26565 28345 39683 62359 85035 119049 130387 187077 198415 311795 361973 391161 436513 595245 651935 912709 935385 1085919 1309539 1434257 1809865 1955805 2182565 2533811 2738127 3981703 4302771 4563545 5429595 6547695 7171285 7601433 8325379 10039799 11945109 12669055 13690635 19908515 21513855 24976137 27871921 30119397 38007165 41626895 50198995 58277653 59725545 83615763 91579169 124880685 139359605 150596985 174832959 274737507 291388265 418078815 457895845 641054183 874164795 1373687535 1923162549 2052024937 3205270915 6156074811 9615812745 10260124685 14364174559 22572274307 30780374055 43092523677 47196573551 67716822921 71820872795 112861371535 141589720653 158005920149 215462618385 235982867755 330376014857 338584114605 474017760447 519162309061 707948603265 790029600745 991128044571 1557486927183 1651880074285 2370088802235 2595811545305 3634136163427 4955640222855 7787434635915 10902408490281 18170680817135 54512042451405