Base | Representation |
---|---|
bin | 1111111101101… |
… | …0101010111110 |
3 | 11122222201022121 |
4 | 3333122222332 |
5 | 114120042331 |
6 | 10351033154 |
7 | 1442054620 |
oct | 377325276 |
9 | 148881277 |
10 | 66955966 |
11 | 34882010 |
12 | 1a50b7ba |
13 | 10b4411c |
14 | 8c6cc10 |
15 | 5d28c11 |
hex | 3fdaabe |
66955966 has 32 divisors (see below), whose sum is σ = 125908992. Its totient is φ = 25942560.
The previous prime is 66955963. The next prime is 66955991.
It is a happy number.
66955966 is nontrivially palindromic in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (66955963) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29235 + ... + 31441.
It is an arithmetic number, because the mean of its divisors is an integer number (3934656).
Almost surely, 266955966 is an apocalyptic number.
66955966 is a deficient number, since it is larger than the sum of its proper divisors (58953026).
66955966 is a wasteful number, since it uses less digits than its factorization.
66955966 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2424.
The product of its digits is 2624400, while the sum is 52.
The square root of 66955966 is about 8182.6625251198. The cubic root of 66955966 is about 406.0658123311.
The spelling of 66955966 in words is "sixty-six million, nine hundred fifty-five thousand, nine hundred sixty-six".
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