Base | Representation |
---|---|
bin | 10110101101011… |
… | …001110010101011 |
3 | 222112220211221112 |
4 | 112231121302223 |
5 | 1240014012000 |
6 | 101450100535 |
7 | 12304311503 |
oct | 2655316253 |
9 | 875824845 |
10 | 381000875 |
11 | 186079662 |
12 | a771a74b |
13 | 60c1b908 |
14 | 3885aa03 |
15 | 236ae235 |
hex | 16b59cab |
381000875 has 16 divisors (see below), whose sum is σ = 477225216. Its totient is φ = 303688000.
The previous prime is 381000859. The next prime is 381000883. The reversal of 381000875 is 578000183.
It is not a de Polignac number, because 381000875 - 24 = 381000859 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29702 + ... + 40548.
It is an arithmetic number, because the mean of its divisors is an integer number (29826576).
Almost surely, 2381000875 is an apocalyptic number.
381000875 is a deficient number, since it is larger than the sum of its proper divisors (96224341).
381000875 is a wasteful number, since it uses less digits than its factorization.
381000875 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11143 (or 11133 counting only the distinct ones).
The product of its (nonzero) digits is 6720, while the sum is 32.
The square root of 381000875 is about 19519.2437097342. The cubic root of 381000875 is about 724.9510073909.
The spelling of 381000875 in words is "three hundred eighty-one million, eight hundred seventy-five", and thus it is an aban number.
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