Base | Representation |
---|---|
bin | 1111111111001… |
… | …0101100110110 |
3 | 11200011201022221 |
4 | 3333302230312 |
5 | 114131220030 |
6 | 10353112554 |
7 | 1442644564 |
oct | 377625466 |
9 | 150151287 |
10 | 67054390 |
11 | 34939a57 |
12 | 1a55875a |
13 | 10b79b70 |
14 | 8c96a34 |
15 | 5d47e7a |
hex | 3ff2b36 |
67054390 has 16 divisors (see below), whose sum is σ = 129982608. Its totient is φ = 24758496.
The previous prime is 67054387. The next prime is 67054391. The reversal of 67054390 is 9345076.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67054391) 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, 257772 + ... + 258031.
It is an arithmetic number, because the mean of its divisors is an integer number (8123913).
Almost surely, 267054390 is an apocalyptic number.
67054390 is a deficient number, since it is larger than the sum of its proper divisors (62928218).
67054390 is a wasteful number, since it uses less digits than its factorization.
67054390 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 515823.
The product of its (nonzero) digits is 22680, while the sum is 34.
The square root of 67054390 is about 8188.6744959120. The cubic root of 67054390 is about 406.2646845974.
The spelling of 67054390 in words is "sixty-seven million, fifty-four thousand, three hundred ninety".
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