Base | Representation |
---|---|
bin | 1001100110111… |
… | …11011110000001 |
3 | 12121200021011100 |
4 | 10303133132001 |
5 | 131113411410 |
6 | 11555405013 |
7 | 1666102065 |
oct | 463373601 |
9 | 177607140 |
10 | 80607105 |
11 | 41556347 |
12 | 22bb3769 |
13 | 13913817 |
14 | a9c3aa5 |
15 | 71238c0 |
hex | 4cdf781 |
80607105 has 12 divisors (see below), whose sum is σ = 139719060. Its totient is φ = 42990432.
The previous prime is 80607103. The next prime is 80607113. The reversal of 80607105 is 50170608.
It can be written as a sum of positive squares in 2 ways, for example, as 45643536 + 34963569 = 6756^2 + 5913^2 .
It is not a de Polignac number, because 80607105 - 21 = 80607103 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80607103) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 895590 + ... + 895679.
It is an arithmetic number, because the mean of its divisors is an integer number (11643255).
Almost surely, 280607105 is an apocalyptic number.
It is an amenable number.
80607105 is a deficient number, since it is larger than the sum of its proper divisors (59111955).
80607105 is a wasteful number, since it uses less digits than its factorization.
80607105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1791280 (or 1791277 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 27.
The square root of 80607105 is about 8978.1459667350. The cubic root of 80607105 is about 431.9741657648.
The spelling of 80607105 in words is "eighty million, six hundred seven thousand, one hundred five".
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