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287048310081 = 313294094191481
BaseRepresentation
bin1000010110101010110…
…10011001110101000001
31000102220220001000020220
410023111122121311001
514200333331410311
6335511305253253
726511216243411
oct4132532316501
91012826030226
10287048310081
11100811318a35
124776ba94229
13210b7773070
14dc70d90641
157700601206
hex42d5699d41

287048310081 has 64 divisors (see below), whose sum is σ = 428736672000. Its totient is φ = 169616240640.

The previous prime is 287048310011. The next prime is 287048310089. The reversal of 287048310081 is 180013840782.

It is not a de Polignac number, because 287048310081 - 219 = 287047785793 is a prime.

It is a super-2 number, since 2×2870483100812 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (287048310089) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 193819861 + ... + 193821341.

It is an arithmetic number, because the mean of its divisors is an integer number (6699010500).

Almost surely, 2287048310081 is an apocalyptic number.

It is an amenable number.

287048310081 is a deficient number, since it is larger than the sum of its proper divisors (141688361919).

287048310081 is a wasteful number, since it uses less digits than its factorization.

287048310081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 287048310081 in words is "two hundred eighty-seven billion, forty-eight million, three hundred ten thousand, eighty-one".

Divisors: 1 3 13 29 39 87 377 409 419 1131 1227 1257 1481 4443 5317 5447 11861 12151 15951 16341 19253 35583 36453 42949 57759 128847 154193 157963 171371 462579 473889 514113 558337 605729 620539 1675011 1817187 1861617 2227823 4969759 6683469 7874477 8067007 14909277 17566141 17995631 23623431 24201021 52698423 53986893 64606867 193820601 228359833 233943203 253800451 685079499 701829609 761401353 3299405863 7360213079 9898217589 22080639237 95682770027 287048310081