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68867597740 = 22523149712169
BaseRepresentation
bin100000000100011010…
…1000010010110101100
320120202111112110000011
41000020311002112230
52112020101111430
651345355343004
74655413631224
oct1001065022654
9216674473004
1068867597740
112722aa66537
121141b751a64
136656960446
143494481084
151bd0ec922a
hex1008d425ac

68867597740 has 24 divisors (see below), whose sum is σ = 150909867360. Its totient is φ = 26349341568.

The previous prime is 68867597699. The next prime is 68867597753. The reversal of 68867597740 is 4779576886.

It is a happy number.

It is an unprimeable number.

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, 74855625 + ... + 74856544.

It is an arithmetic number, because the mean of its divisors is an integer number (6287911140).

Almost surely, 268867597740 is an apocalyptic number.

It is an amenable number.

68867597740 is an abundant number, since it is smaller than the sum of its proper divisors (82042269620).

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

68867597740 is a wasteful number, since it uses less digits than its factorization.

68867597740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149712201 (or 149712199 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 67.

The spelling of 68867597740 in words is "sixty-eight billion, eight hundred sixty-seven million, five hundred ninety-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 149712169 299424338 598848676 748560845 1497121690 2994243380 3443379887 6886759774 13773519548 17216899435 34433798870 68867597740