Base | Representation |
---|---|
bin | 1000000111100… |
… | …00011000001111 |
3 | 11202010111122211 |
4 | 10003300120033 |
5 | 114412442310 |
6 | 10431251251 |
7 | 1454533123 |
oct | 403603017 |
9 | 152114584 |
10 | 68093455 |
11 | 35489691 |
12 | 1a979b27 |
13 | 11151ab1 |
14 | 9087583 |
15 | 5ea0c8a |
hex | 40f060f |
68093455 has 16 divisors (see below), whose sum is σ = 86235840. Its totient is φ = 51513088.
The previous prime is 68093429. The next prime is 68093489. The reversal of 68093455 is 55439086.
It is a cyclic number.
It is not a de Polignac number, because 68093455 - 25 = 68093423 is a prime.
It is a super-2 number, since 2×680934552 = 9273437227674050, which contains 22 as substring.
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 6909 + ... + 13561.
It is an arithmetic number, because the mean of its divisors is an integer number (5389740).
Almost surely, 268093455 is an apocalyptic number.
68093455 is a deficient number, since it is larger than the sum of its proper divisors (18142385).
68093455 is a wasteful number, since it uses less digits than its factorization.
68093455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6770.
The product of its (nonzero) digits is 129600, while the sum is 40.
The square root of 68093455 is about 8251.8758473453. The cubic root of 68093455 is about 408.3524104188.
The spelling of 68093455 in words is "sixty-eight million, ninety-three thousand, four hundred fifty-five".
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