Base | Representation |
---|---|
bin | 101011011010… |
… | …100001000101 |
3 | 210102012112022 |
4 | 223122201011 |
5 | 10403141210 |
6 | 1043532525 |
7 | 165510122 |
oct | 53324105 |
9 | 23365468 |
10 | 11380805 |
11 | 6473627 |
12 | 398a145 |
13 | 2486207 |
14 | 1723749 |
15 | eec155 |
hex | ada845 |
11380805 has 16 divisors (see below), whose sum is σ = 14031360. Its totient is φ = 8858688.
The previous prime is 11380801. The next prime is 11380843. The reversal of 11380805 is 50808311.
It is a cyclic number.
It is not a de Polignac number, because 11380805 - 22 = 11380801 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11380801) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50924 + ... + 51146.
It is an arithmetic number, because the mean of its divisors is an integer number (876960).
Almost surely, 211380805 is an apocalyptic number.
It is an amenable number.
11380805 is a deficient number, since it is larger than the sum of its proper divisors (2650555).
11380805 is a wasteful number, since it uses less digits than its factorization.
11380805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 460.
The product of its (nonzero) digits is 960, while the sum is 26.
The square root of 11380805 is about 3373.5448714965. The cubic root of 11380805 is about 224.9353229739.
The spelling of 11380805 in words is "eleven million, three hundred eighty thousand, eight hundred five".
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