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287141342730 = 235111368163601
BaseRepresentation
bin1000010110110101111…
…01010010111000001010
31000110011101002120001120
410023122331102320022
514201031140431410
6335524431300110
726513426066544
oct4133275227012
91013141076046
10287141342730
11100859890820
124779707a636
1321100b17478
14dc7d48a694
15770887b570
hex42daf52e0a

287141342730 has 64 divisors (see below), whose sum is σ = 751855015296. Its totient is φ = 69603840000.

The previous prime is 287141342717. The next prime is 287141342753. The reversal of 287141342730 is 37243141782.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4482930 + ... + 4546530.

It is an arithmetic number, because the mean of its divisors is an integer number (11747734614).

Almost surely, 2287141342730 is an apocalyptic number.

287141342730 is an abundant number, since it is smaller than the sum of its proper divisors (464713672566).

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

287141342730 is a wasteful number, since it uses less digits than its factorization.

287141342730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77303.

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 287141342730 in words is "two hundred eighty-seven billion, one hundred forty-one million, three hundred forty-two thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 13681 27362 41043 63601 68405 82086 127202 136810 150491 190803 205215 300982 318005 381606 410430 451473 636010 699611 752455 902946 954015 1399222 1504910 1908030 2098833 2257365 3498055 4197666 4514730 6996110 10494165 20988330 870125281 1740250562 2610375843 4350626405 5220751686 8701252810 9571378091 13051879215 19142756182 26103758430 28714134273 47856890455 57428268546 95713780910 143570671365 287141342730