Base | Representation |
---|---|
bin | 1111111111011… |
… | …0000110000000 |
3 | 11200012102101200 |
4 | 3333312012000 |
5 | 114132141123 |
6 | 10353301200 |
7 | 1443033240 |
oct | 377660600 |
9 | 150172350 |
10 | 67068288 |
11 | 34949441 |
12 | 1a564800 |
13 | 10b832a1 |
14 | 8c9bb20 |
15 | 5d4c143 |
hex | 3ff6180 |
67068288 has 96 divisors (see below), whose sum is σ = 220593360. Its totient is φ = 19160064.
The previous prime is 67068277. The next prime is 67068289. The reversal of 67068288 is 88286076.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67068289) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3906 + ... + 12222.
Almost surely, 267068288 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 67068288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110296680).
67068288 is an abundant number, since it is smaller than the sum of its proper divisors (153525072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67068288 is a wasteful number, since it uses less digits than its factorization.
67068288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8344 (or 8329 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 45.
The square root of 67068288 is about 8189.5230630361. The cubic root of 67068288 is about 406.2927507516.
The spelling of 67068288 in words is "sixty-seven million, sixty-eight thousand, two hundred eighty-eight".
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