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57387229539552 = 253211173104708993
BaseRepresentation
bin11010000110001100000010…
…11011100110110011100000
321112012011110200211000010100
431003012001123212303200
530010213021230231202
6322015155043502400
715042043021442253
oct1503060133466340
9245164420730110
1057387229539552
1117315872aa1890
12652a043087a00
132603791a15763
1410257b194909a
15697b90a4741c
hex3431816e6ce0

57387229539552 has 144 divisors (see below), whose sum is σ = 179059918787568. Its totient is φ = 17289548759040.

The previous prime is 57387229539547. The next prime is 57387229539571. The reversal of 57387229539552 is 25593592278375.

57387229539552 is a `hidden beast` number, since 5 + 7 + 3 + 8 + 7 + 229 + 5 + 395 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×573872295395522 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51806433 + ... + 52902560.

It is an arithmetic number, because the mean of its divisors is an integer number (1243471658247).

Almost surely, 257387229539552 is an apocalyptic number.

It is an amenable number.

57387229539552 is an abundant number, since it is smaller than the sum of its proper divisors (121672689248016).

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

57387229539552 is a wasteful number, since it uses less digits than its factorization.

57387229539552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104709193 (or 104709182 counting only the distinct ones).

The product of its digits is 1428840000, while the sum is 72.

The spelling of 57387229539552 in words is "fifty-seven trillion, three hundred eighty-seven billion, two hundred twenty-nine million, five hundred thirty-nine thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 66 72 88 96 99 132 144 173 176 198 264 288 346 352 396 519 528 692 792 1038 1056 1384 1557 1584 1903 2076 2768 3114 3168 3806 4152 5536 5709 6228 7612 8304 11418 12456 15224 16608 17127 22836 24912 30448 34254 45672 49824 60896 68508 91344 137016 182688 274032 548064 104708993 209417986 314126979 418835972 628253958 837671944 942380937 1151798923 1256507916 1675343888 1884761874 2303597846 2513015832 3350687776 3455396769 3769523748 4607195692 5026031664 6910793538 7539047496 9214391384 10052063328 10366190307 13821587076 15078094992 18114655789 18428782768 20732380614 27643174152 30156189984 36229311578 36857565536 41464761228 54343967367 55286348304 72458623156 82929522456 108687934734 110572696608 144917246312 163031902101 165859044912 199261213679 217375869468 289834492624 326063804202 331718089824 398522427358 434751738936 579668985248 597783641037 652127608404 797044854716 869503477872 1195567282074 1304255216808 1594089709432 1739006955744 1793350923111 2391134564148 2608510433616 3188179418864 3586701846222 4782269128296 5217020867232 6376358837728 7173403692444 9564538256592 14346807384888 19129076513184 28693614769776 57387229539552