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80650787268 = 22361778713841
BaseRepresentation
bin100101100011100101…
…0010101100111000100
321201011200200111022010
41023013022111213010
52310133100143033
6101014522134220
75553413244402
oct1130712254704
9251150614263
1080650787268
11312272a31a7
1213769951370
1377b3c0323c
143c91382472
1521706be863
hex12c72959c4

80650787268 has 48 divisors (see below), whose sum is σ = 188743310784. Its totient is φ = 26803983360.

The previous prime is 80650787237. The next prime is 80650787281. The reversal of 80650787268 is 86278705608.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 5820028 + ... + 5833868.

It is an arithmetic number, because the mean of its divisors is an integer number (3932152308).

Almost surely, 280650787268 is an apocalyptic number.

It is an amenable number.

80650787268 is an abundant number, since it is smaller than the sum of its proper divisors (108092523516).

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

80650787268 is a wasteful number, since it uses less digits than its factorization.

80650787268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15252 (or 15250 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 57.

The spelling of 80650787268 in words is "eighty billion, six hundred fifty million, seven hundred eighty-seven thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 617 787 1234 1574 1851 2361 2468 3148 3702 4722 7404 9444 13841 27682 41523 55364 83046 166092 485579 971158 1456737 1942316 2913474 5826948 8539897 10892867 17079794 21785734 25619691 32678601 34159588 43571468 51239382 65357202 102478764 130714404 6720898939 13441797878 20162696817 26883595756 40325393634 80650787268