Base | Representation |
---|---|
bin | 1000000111011… |
… | …01001010100101 |
3 | 11202002211121100 |
4 | 10003231022211 |
5 | 114412032133 |
6 | 10431110313 |
7 | 1454446551 |
oct | 403551245 |
9 | 152084540 |
10 | 68080293 |
11 | 3547a806 |
12 | 1a972399 |
13 | 11148ac8 |
14 | 9082861 |
15 | 5e9be13 |
hex | 40ed2a5 |
68080293 has 6 divisors (see below), whose sum is σ = 98338214. Its totient is φ = 45386856.
The previous prime is 68080279. The next prime is 68080297. The reversal of 68080293 is 39208086.
It can be written as a sum of positive squares in only one way, i.e., 46009089 + 22071204 = 6783^2 + 4698^2 .
It is not a de Polignac number, because 68080293 - 226 = 971429 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68080297) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3782230 + ... + 3782247.
Almost surely, 268080293 is an apocalyptic number.
It is an amenable number.
68080293 is a deficient number, since it is larger than the sum of its proper divisors (30257921).
68080293 is a wasteful number, since it uses less digits than its factorization.
68080293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7564483 (or 7564480 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 68080293 is about 8251.0782931687. The cubic root of 68080293 is about 408.3260981457.
The spelling of 68080293 in words is "sixty-eight million, eighty thousand, two hundred ninety-three".
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