Base | Representation |
---|---|
bin | 100100101001100101… |
… | …0010100101011001100 |
3 | 21112011001122021110020 |
4 | 1021103022110223030 |
5 | 2242141341021010 |
6 | 100053441142140 |
7 | 5454242200062 |
oct | 1112312245314 |
9 | 245131567406 |
10 | 78704626380 |
11 | 30418789776 |
12 | 1330602a950 |
13 | 7563959853 |
14 | 3b48b00032 |
15 | 20a98e4470 |
hex | 1253294acc |
78704626380 has 48 divisors (see below), whose sum is σ = 220386544224. Its totient is φ = 20986606080.
The previous prime is 78704626379. The next prime is 78704626409. The reversal of 78704626380 is 8362640787.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1317234 + ... + 1375686.
It is an arithmetic number, because the mean of its divisors is an integer number (4591386338).
Almost surely, 278704626380 is an apocalyptic number.
It is an amenable number.
78704626380 is an abundant number, since it is smaller than the sum of its proper divisors (141681917844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78704626380 is a wasteful number, since it uses less digits than its factorization.
78704626380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80906 (or 80904 counting only the distinct ones).
The product of its (nonzero) digits is 2709504, while the sum is 51.
The spelling of 78704626380 in words is "seventy-eight billion, seven hundred four million, six hundred twenty-six thousand, three hundred eighty".
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