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57906880901620 = 225174119321523361
BaseRepresentation
bin11010010101010011111110…
…00100001111000111110100
321121000211210002112100021121
431022221333010033013310
530042221243002322440
6323054015343553324
715124430330233462
oct1512517704170764
9247024702470247
1057906880901620
11174a6196704483
1265b28a92bb844
132640798240c0a
1410429caa1d832
156a64569cb34a
hex34aa7f10f1f4

57906880901620 has 96 divisors (see below), whose sum is σ = 132581499303456. Its totient is φ = 21158323814400.

The previous prime is 57906880901543. The next prime is 57906880901627. The reversal of 57906880901620 is 2610908860975.

It can be written as a sum of positive squares in 16 ways, for example, as 47181347601424 + 10725533300196 = 6868868^2 + 3274986^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57906880901627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8071261 + ... + 13452100.

It is an arithmetic number, because the mean of its divisors is an integer number (1381057284411).

Almost surely, 257906880901620 is an apocalyptic number.

It is an amenable number.

57906880901620 is an abundant number, since it is smaller than the sum of its proper divisors (74674618401836).

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

57906880901620 is a wasteful number, since it uses less digits than its factorization.

57906880901620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21523621 (or 21523619 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 57906880901620 in words is "fifty-seven trillion, nine hundred six billion, eight hundred eighty million, nine hundred one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 41 68 82 85 164 170 193 205 340 386 410 697 772 820 965 1394 1930 2788 3281 3485 3860 6562 6970 7913 13124 13940 15826 16405 31652 32810 39565 65620 79130 134521 158260 269042 538084 672605 1345210 2690420 21523361 43046722 86093444 107616805 215233610 365897137 430467220 731794274 882457801 1463588548 1764915602 1829485685 3529831204 3658971370 4154008673 4412289005 7317942740 8308017346 8824578010 15001782617 16616034692 17649156020 20770043365 30003565234 41540086730 60007130468 70618147441 75008913085 83080173460 141236294882 150017826170 170314355593 282472589764 300035652340 340628711186 353090737205 681257422372 706181474410 851571777965 1412362948820 1703143555930 2895344045081 3406287111860 5790688090162 11581376180324 14476720225405 28953440450810 57906880901620