Base | Representation |
---|---|
bin | 1111101011001… |
… | …0110100001110 |
3 | 11120201011000020 |
4 | 3322302310032 |
5 | 113312303032 |
6 | 10305043010 |
7 | 1425546612 |
oct | 372626416 |
9 | 146634006 |
10 | 65744142 |
11 | 34124602 |
12 | 1a026466 |
13 | 1080b679 |
14 | 8a35342 |
15 | 5b89b2c |
hex | 3eb2d0e |
65744142 has 16 divisors (see below), whose sum is σ = 138408960. Its totient is φ = 20761272.
The previous prime is 65744141. The next prime is 65744167. The reversal of 65744142 is 24144756.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (65744141) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288238 + ... + 288465.
It is an arithmetic number, because the mean of its divisors is an integer number (8650560).
Almost surely, 265744142 is an apocalyptic number.
65744142 is an abundant number, since it is smaller than the sum of its proper divisors (72664818).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65744142 is a wasteful number, since it uses less digits than its factorization.
65744142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 576727.
The product of its digits is 26880, while the sum is 33.
The square root of 65744142 is about 8108.2761423129. The cubic root of 65744142 is about 403.6011118600.
Adding to 65744142 its reverse (24144756), we get a palindrome (89888898).
The spelling of 65744142 in words is "sixty-five million, seven hundred forty-four thousand, one hundred forty-two".
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