Base | Representation |
---|---|
bin | 1000000110111… |
… | …10010010101000 |
3 | 11201222202000212 |
4 | 10003132102220 |
5 | 114403104433 |
6 | 10425520252 |
7 | 1454104124 |
oct | 403362250 |
9 | 151882025 |
10 | 68019368 |
11 | 35438a5a |
12 | 1a943088 |
13 | 11127161 |
14 | 9068584 |
15 | 5e88d48 |
hex | 40de4a8 |
68019368 has 16 divisors (see below), whose sum is σ = 127644660. Its totient is φ = 33980800.
The previous prime is 68019361. The next prime is 68019403. The reversal of 68019368 is 86391086.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 67930564 + 88804 = 8242^2 + 298^2 .
It is not an unprimeable number, because it can be changed into a prime (68019361) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 8978 + ... + 14718.
Almost surely, 268019368 is an apocalyptic number.
It is an amenable number.
68019368 is a deficient number, since it is larger than the sum of its proper divisors (59625292).
68019368 is a wasteful number, since it uses less digits than its factorization.
68019368 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7228 (or 7224 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 41.
The square root of 68019368 is about 8247.3855251225. The cubic root of 68019368 is about 408.2042582269.
The spelling of 68019368 in words is "sixty-eight million, nineteen thousand, three hundred sixty-eight".
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