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28953440450810 = 25174119321523361
BaseRepresentation
bin1101001010101001111111…
…00010000111100011111010
310210111220220001021011122022
412211110333202013203322
512243333121223411220
6141325005451554442
76045550150115231
oct645247742074372
9123456801234568
1028953440450810
1192530a3357797
1232b745475ba22
1313203b4120605
147214d550db18
1535322ac65925
hex1a553f8878fa

28953440450810 has 64 divisors (see below), whose sum is σ = 56820642558624. Its totient is φ = 10579161907200.

The previous prime is 28953440450807. The next prime is 28953440450819. The reversal of 28953440450810 is 1805404435982.

It can be written as a sum of positive squares in 16 ways, for example, as 3228996957481 + 25724443493329 = 1796941^2 + 5071927^2 .

It is a super-2 number, since 2×289534404508102 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28953440450819) 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, 9416471 + ... + 12106890.

Almost surely, 228953440450810 is an apocalyptic number.

28953440450810 is a deficient number, since it is larger than the sum of its proper divisors (27867202107814).

28953440450810 is a wasteful number, since it uses less digits than its factorization.

28953440450810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21523619.

The product of its (nonzero) digits is 5529600, while the sum is 53.

The spelling of 28953440450810 in words is "twenty-eight trillion, nine hundred fifty-three billion, four hundred forty million, four hundred fifty thousand, eight hundred ten".

Divisors: 1 2 5 10 17 34 41 82 85 170 193 205 386 410 697 965 1394 1930 3281 3485 6562 6970 7913 15826 16405 32810 39565 79130 134521 269042 672605 1345210 21523361 43046722 107616805 215233610 365897137 731794274 882457801 1764915602 1829485685 3658971370 4154008673 4412289005 8308017346 8824578010 15001782617 20770043365 30003565234 41540086730 70618147441 75008913085 141236294882 150017826170 170314355593 340628711186 353090737205 706181474410 851571777965 1703143555930 2895344045081 5790688090162 14476720225405 28953440450810