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287887242344 = 23138113413251
BaseRepresentation
bin1000011000001110110…
…10101011010001101000
31000112002100122011222012
410030013122223101220
514204043113223334
6340130434415052
726541054120152
oct4140732532150
91015070564865
10287887242344
11101101930189
1247964a31488
13211bc5077a0
14dd10571ad2
15774e0b89ce
hex43076ab468

287887242344 has 32 divisors (see below), whose sum is σ = 582027731040. Its totient is φ = 132707160000.

The previous prime is 287887242317. The next prime is 287887242361. The reversal of 287887242344 is 443242788782.

It is a super-2 number, since 2×2878872423442 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1622282 + ... + 1790969.

It is an arithmetic number, because the mean of its divisors is an integer number (18188366595).

Almost surely, 2287887242344 is an apocalyptic number.

It is an amenable number.

287887242344 is an abundant number, since it is smaller than the sum of its proper divisors (294140488696).

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

287887242344 is a wasteful number, since it uses less digits than its factorization.

287887242344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414081 (or 3414077 counting only the distinct ones).

The product of its digits is 38535168, while the sum is 59.

The spelling of 287887242344 in words is "two hundred eighty-seven billion, eight hundred eighty-seven million, two hundred forty-two thousand, three hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 811 1622 3244 6488 10543 21086 42172 84344 3413251 6826502 13653004 27306008 44372263 88744526 177489052 354978104 2768146561 5536293122 11072586244 22145172488 35985905293 71971810586 143943621172 287887242344