Base | Representation |
---|---|
bin | 1000000110111… |
… | …10000001000001 |
3 | 11201222200111010 |
4 | 10003132001001 |
5 | 114403040431 |
6 | 10425511133 |
7 | 1454100624 |
oct | 403360101 |
9 | 151880433 |
10 | 68018241 |
11 | 35438125 |
12 | 1a9424a9 |
13 | 111267a5 |
14 | 9067dbb |
15 | 5e88846 |
hex | 40de041 |
68018241 has 8 divisors (see below), whose sum is σ = 96025824. Its totient is φ = 42678080.
The previous prime is 68018231. The next prime is 68018257. The reversal of 68018241 is 14281086.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68018241 - 26 = 68018177 is a prime.
It is a super-2 number, since 2×680182412 = 9252962217468162, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 68018199 and 68018208.
It is not an unprimeable number, because it can be changed into a prime (68018231) 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, 666795 + ... + 666896.
It is an arithmetic number, because the mean of its divisors is an integer number (12003228).
Almost surely, 268018241 is an apocalyptic number.
It is an amenable number.
68018241 is a deficient number, since it is larger than the sum of its proper divisors (28007583).
68018241 is a wasteful number, since it uses less digits than its factorization.
68018241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1333711.
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 68018241 is about 8247.3172001567. The cubic root of 68018241 is about 408.2020037282.
The spelling of 68018241 in words is "sixty-eight million, eighteen thousand, two hundred forty-one".
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