Base | Representation |
---|---|
bin | 1000000110111… |
… | …10001101000010 |
3 | 11201222201112121 |
4 | 10003132031002 |
5 | 114403102020 |
6 | 10425514454 |
7 | 1454103103 |
oct | 403361502 |
9 | 151881477 |
10 | 68019010 |
11 | 35438764 |
12 | 1a942a2a |
13 | 11126c47 |
14 | 90683aa |
15 | 5e88baa |
hex | 40de342 |
68019010 has 16 divisors (see below), whose sum is σ = 122715000. Its totient is φ = 27145216.
The previous prime is 68018983. The next prime is 68019059. The reversal of 68019010 is 1091086.
It can be written as a sum of positive squares in 4 ways, for example, as 61952641 + 6066369 = 7871^2 + 2463^2 .
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 3085 + ... + 12064.
Almost surely, 268019010 is an apocalyptic number.
68019010 is a deficient number, since it is larger than the sum of its proper divisors (54695990).
68019010 is a wasteful number, since it uses less digits than its factorization.
68019010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15605.
The product of its (nonzero) digits is 432, while the sum is 25.
The square root of 68019010 is about 8247.3638212462. The cubic root of 68019010 is about 408.2035420712.
The spelling of 68019010 in words is "sixty-eight million, nineteen thousand, ten".
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