Base | Representation |
---|---|
bin | 10001110010100100110111… |
… | …001100110100010101000100 |
3 | 101021000220011120111220210211 |
4 | 101302210313030310111010 |
5 | 40223410310401310210 |
6 | 434224012013125204 |
7 | 22323552154031602 |
oct | 2162446714642504 |
9 | 337026146456724 |
10 | 78242345338180 |
11 | 22a26435195911 |
12 | 8937a83189804 |
13 | 34872b5859c4a |
14 | 1546d42064872 |
15 | 90a3e274238a |
hex | 472937334544 |
78242345338180 has 24 divisors (see below), whose sum is σ = 171452791524672. Its totient is φ = 29936201694432.
The previous prime is 78242345338169. The next prime is 78242345338187. The reversal of 78242345338180 is 8183354324287.
It is a super-3 number, since 3×782423453381803 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (78242345338187) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85046027082 + ... + 85046028001.
It is an arithmetic number, because the mean of its divisors is an integer number (7143866313528).
Almost surely, 278242345338180 is an apocalyptic number.
It is an amenable number.
78242345338180 is an abundant number, since it is smaller than the sum of its proper divisors (93210446186492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78242345338180 is a wasteful number, since it uses less digits than its factorization.
78242345338180 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 170092055115 (or 170092055113 counting only the distinct ones).
The product of its (nonzero) digits is 30965760, while the sum is 58.
The spelling of 78242345338180 in words is "seventy-eight trillion, two hundred forty-two billion, three hundred forty-five million, three hundred thirty-eight thousand, one hundred eighty".
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