Base | Representation |
---|---|
bin | 1111110110001… |
… | …1100111000101 |
3 | 11122001221100122 |
4 | 3331203213011 |
5 | 114003441133 |
6 | 10332351325 |
7 | 1434654053 |
oct | 375434705 |
9 | 148057318 |
10 | 66468293 |
11 | 34579681 |
12 | 1a315545 |
13 | 10a03168 |
14 | 8b831d3 |
15 | 5c7e498 |
hex | 3f639c5 |
66468293 has 8 divisors (see below), whose sum is σ = 68522112. Its totient is φ = 64441216.
The previous prime is 66468287. The next prime is 66468299. The reversal of 66468293 is 39286466.
It is an interprime number because it is at equal distance from previous prime (66468287) and next prime (66468299).
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 66468293 - 24 = 66468277 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 (66468299) 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, 1580 + ... + 11637.
It is an arithmetic number, because the mean of its divisors is an integer number (8565264).
Almost surely, 266468293 is an apocalyptic number.
It is an amenable number.
66468293 is a deficient number, since it is larger than the sum of its proper divisors (2053819).
66468293 is a wasteful number, since it uses less digits than its factorization.
66468293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13371.
The product of its digits is 373248, while the sum is 44.
The square root of 66468293 is about 8152.8089024581. The cubic root of 66468293 is about 405.0775505612.
The spelling of 66468293 in words is "sixty-six million, four hundred sixty-eight thousand, two hundred ninety-three".
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