Base | Representation |
---|---|
bin | 111110010010010111… |
… | …001101010111000010 |
3 | 20101121222122102101220 |
4 | 332102113031113002 |
5 | 2043432244121020 |
6 | 50420235535510 |
7 | 4555231122051 |
oct | 762227152702 |
9 | 211558572356 |
10 | 66880067010 |
11 | 26400066259 |
12 | 10b65bba596 |
13 | 63cac60863 |
14 | 3346510398 |
15 | 1b1677b240 |
hex | f925cd5c2 |
66880067010 has 32 divisors (see below), whose sum is σ = 160600923072. Its totient is φ = 17824822080.
The previous prime is 66880066991. The next prime is 66880067011. The reversal of 66880067010 is 1076008866.
It is not an unprimeable number, because it can be changed into a prime (66880067011) 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, 561169 + ... + 669828.
It is an arithmetic number, because the mean of its divisors is an integer number (5018778846).
Almost surely, 266880067010 is an apocalyptic number.
66880067010 is an abundant number, since it is smaller than the sum of its proper divisors (93720856062).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
66880067010 is a wasteful number, since it uses less digits than its factorization.
66880067010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1232818.
The product of its (nonzero) digits is 96768, while the sum is 42.
The spelling of 66880067010 in words is "sixty-six billion, eight hundred eighty million, sixty-seven thousand, ten".
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