Base | Representation |
---|---|
bin | 100011110011… |
… | …0100101011100 |
3 | 1022022121222010 |
4 | 1013212211130 |
5 | 14301122033 |
6 | 1510151220 |
7 | 315354546 |
oct | 107464534 |
9 | 38277863 |
10 | 18770268 |
11 | a660420 |
12 | 6352510 |
13 | 3b7278a |
14 | 26c8696 |
15 | 19ab863 |
hex | 11e695c |
18770268 has 48 divisors (see below), whose sum is σ = 48698496. Its totient is φ = 5578560.
The previous prime is 18770263. The next prime is 18770303. The reversal of 18770268 is 86207781.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18770263) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5655 + ... + 8337.
It is an arithmetic number, because the mean of its divisors is an integer number (1014552).
Almost surely, 218770268 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 18770268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24349248).
18770268 is an abundant number, since it is smaller than the sum of its proper divisors (29928228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18770268 is a wasteful number, since it uses less digits than its factorization.
18770268 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2754 (or 2752 counting only the distinct ones).
The product of its (nonzero) digits is 37632, while the sum is 39.
The square root of 18770268 is about 4332.4667338596. The cubic root of 18770268 is about 265.7603321089.
The spelling of 18770268 in words is "eighteen million, seven hundred seventy thousand, two hundred sixty-eight".
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