Base | Representation |
---|---|
bin | 10001000111111… |
… | …000110001100110 |
3 | 202000120100101112 |
4 | 101013320301212 |
5 | 1042020431410 |
6 | 44301225022 |
7 | 10055561456 |
oct | 2107706146 |
9 | 660510345 |
10 | 287280230 |
11 | 138186986 |
12 | 80262172 |
13 | 47696303 |
14 | 2a221d66 |
15 | 1a34a105 |
hex | 111f8c66 |
287280230 has 8 divisors (see below), whose sum is σ = 517104432. Its totient is φ = 114912088.
The previous prime is 287280221. The next prime is 287280241. The reversal of 287280230 is 32082782.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14364002 + ... + 14364021.
It is an arithmetic number, because the mean of its divisors is an integer number (64638054).
Almost surely, 2287280230 is an apocalyptic number.
287280230 is a deficient number, since it is larger than the sum of its proper divisors (229824202).
287280230 is a wasteful number, since it uses less digits than its factorization.
287280230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28728030.
The product of its (nonzero) digits is 10752, while the sum is 32.
The square root of 287280230 is about 16949.3430551157. The cubic root of 287280230 is about 659.8348454224.
The spelling of 287280230 in words is "two hundred eighty-seven million, two hundred eighty thousand, two hundred thirty".
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