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68767484568 = 2333777440861
BaseRepresentation
bin100000000001011011…
…1001000101010011000
320120111112011011112220
41000002313020222120
52111313434001233
651331421504040
74653056655126
oct1000267105230
9216445134486
1068767484568
11271894a7a82
12113b2112020
13663bcaa293
143485060916
151bc7300eb3
hex1002dc8a98

68767484568 has 32 divisors (see below), whose sum is σ = 176565165360. Its totient is φ = 22302967680.

The previous prime is 68767484563. The next prime is 68767484623. The reversal of 68767484568 is 86548476786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68767484563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38719543 + ... + 38721318.

Almost surely, 268767484568 is an apocalyptic number.

It is an amenable number.

68767484568 is an abundant number, since it is smaller than the sum of its proper divisors (107797680792).

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

68767484568 is a wasteful number, since it uses less digits than its factorization.

68767484568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77440907 (or 77440903 counting only the distinct ones).

The product of its digits is 433520640, while the sum is 69.

The spelling of 68767484568 in words is "sixty-eight billion, seven hundred sixty-seven million, four hundred eighty-four thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 222 296 444 888 77440861 154881722 232322583 309763444 464645166 619526888 929290332 1858580664 2865311857 5730623714 8595935571 11461247428 17191871142 22922494856 34383742284 68767484568