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87693403568 = 2417341394463
BaseRepresentation
bin101000110101011101…
…1110010010110110000
322101100111121110122212
41101222323302112300
52414044002403233
6104141421551252
76223060426421
oct1215273622660
9271314543585
1087693403568
1134210705051
1214bb4415528
138366caa814
14435c833648
152433b05a48
hex146aef25b0

87693403568 has 40 divisors (see below), whose sum is σ = 179955053568. Its totient is φ = 41254956032.

The previous prime is 87693403561. The next prime is 87693403591. The reversal of 87693403568 is 86530439678.

It is not an unprimeable number, because it can be changed into a prime (87693403561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 881105 + ... + 975567.

Almost surely, 287693403568 is an apocalyptic number.

It is an amenable number.

87693403568 is an abundant number, since it is smaller than the sum of its proper divisors (92261650000).

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

87693403568 is a wasteful number, since it uses less digits than its factorization.

87693403568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97901 (or 97895 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 87693403568 in words is "eighty-seven billion, six hundred ninety-three million, four hundred three thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 3413 6826 13652 27304 54608 58021 94463 116042 188926 232084 377852 464168 755704 928336 1511408 1605871 3211742 6423484 12846968 25693936 322402219 644804438 1289608876 2579217752 5158435504 5480837723 10961675446 21923350892 43846701784 87693403568