Base | Representation |
---|---|
bin | 110100111000101101… |
… | …111100001110011001 |
3 | 12102120112010220112100 |
4 | 310320231330032121 |
5 | 1412244223021410 |
6 | 42030500034013 |
7 | 4050133146420 |
oct | 647055741631 |
9 | 172515126470 |
10 | 56786142105 |
11 | 220a032a060 |
12 | b009692909 |
13 | 547c978b24 |
14 | 2a69adc2b7 |
15 | 17255188c0 |
hex | d38b7c399 |
56786142105 has 48 divisors (see below), whose sum is σ = 122717073024. Its totient is φ = 23599434240.
The previous prime is 56786142097. The next prime is 56786142139. The reversal of 56786142105 is 50124168765.
56786142105 is a `hidden beast` number, since 5 + 6 + 7 + 8 + 614 + 21 + 0 + 5 = 666.
It is not a de Polignac number, because 56786142105 - 23 = 56786142097 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8190784 + ... + 8197713.
It is an arithmetic number, because the mean of its divisors is an integer number (2556605688).
Almost surely, 256786142105 is an apocalyptic number.
56786142105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.
It is an amenable number.
56786142105 is an abundant number, since it is smaller than the sum of its proper divisors (65930930919).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
56786142105 is a wasteful number, since it uses less digits than its factorization.
56786142105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16388526 (or 16388523 counting only the distinct ones).
The product of its (nonzero) digits is 403200, while the sum is 45.
It can be divided in two parts, 56786 and 142105, that added together give a palindrome (198891).
The spelling of 56786142105 in words is "fifty-six billion, seven hundred eighty-six million, one hundred forty-two thousand, one hundred five".
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