Base | Representation |
---|---|
bin | 1111100100011… |
… | …01001101001101 |
3 | 100002202020222220 |
4 | 13302031031031 |
5 | 231413224210 |
6 | 20543125553 |
7 | 3144045165 |
oct | 762151515 |
9 | 302666886 |
10 | 130601805 |
11 | 677a3084 |
12 | 378a38b9 |
13 | 21099699 |
14 | 134b95a5 |
15 | b6ebc70 |
hex | 7c8d34d |
130601805 has 16 divisors (see below), whose sum is σ = 212906880. Its totient is φ = 68339648.
The previous prime is 130601777. The next prime is 130601831. The reversal of 130601805 is 508106031.
It is a cyclic number.
It is not a de Polignac number, because 130601805 - 210 = 130600781 is a prime.
It is a Curzon number.
It is a congruent number.
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, 81345 + ... + 82934.
It is an arithmetic number, because the mean of its divisors is an integer number (13306680).
Almost surely, 2130601805 is an apocalyptic number.
130601805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130601805 is a deficient number, since it is larger than the sum of its proper divisors (82305075).
130601805 is a wasteful number, since it uses less digits than its factorization.
130601805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 164340.
The product of its (nonzero) digits is 720, while the sum is 24.
The square root of 130601805 is about 11428.1146739084. The cubic root of 130601805 is about 507.3601967150.
Adding to 130601805 its reverse (508106031), we get a palindrome (638707836).
The spelling of 130601805 in words is "one hundred thirty million, six hundred one thousand, eight hundred five".
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