Base | Representation |
---|---|
bin | 1111101100001… |
… | …0001011000101 |
3 | 11120211100021222 |
4 | 3323002023011 |
5 | 113321311140 |
6 | 10310250125 |
7 | 1426231163 |
oct | 373021305 |
9 | 146740258 |
10 | 65807045 |
11 | 34167897 |
12 | 1a056945 |
13 | 108311a5 |
14 | 8a50233 |
15 | 5b9d5b5 |
hex | 3ec22c5 |
65807045 has 8 divisors (see below), whose sum is σ = 79856280. Its totient is φ = 52053760.
The previous prime is 65807041. The next prime is 65807047. The reversal of 65807045 is 54070856.
65807045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 9721924 + 56085121 = 3118^2 + 7489^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 65807045 - 22 = 65807041 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 65806996 and 65807014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (65807041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73496 + ... + 74385.
It is an arithmetic number, because the mean of its divisors is an integer number (9982035).
Almost surely, 265807045 is an apocalyptic number.
It is an amenable number.
65807045 is a deficient number, since it is larger than the sum of its proper divisors (14049235).
65807045 is a wasteful number, since it uses less digits than its factorization.
65807045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 147975.
The product of its (nonzero) digits is 33600, while the sum is 35.
The square root of 65807045 is about 8112.1541528746. The cubic root of 65807045 is about 403.7297906411.
The spelling of 65807045 in words is "sixty-five million, eight hundred seven thousand, forty-five".
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