Base | Representation |
---|---|
bin | 11011001011110… |
… | …00111110000111 |
3 | 120220002110020211 |
4 | 31211320332013 |
5 | 431334131422 |
6 | 34343340251 |
7 | 5436164260 |
oct | 1545707607 |
9 | 526073224 |
10 | 228036487 |
11 | 1077a2208 |
12 | 64451687 |
13 | 38322643 |
14 | 223dd967 |
15 | 15046577 |
hex | d978f87 |
228036487 has 16 divisors (see below), whose sum is σ = 278690112. Its totient is φ = 182131200.
The previous prime is 228036469. The next prime is 228036491. The reversal of 228036487 is 784630822.
It is not a de Polignac number, because 228036487 - 215 = 228003719 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (228036187) by changing a digit.
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, 2533 + ... + 21505.
It is an arithmetic number, because the mean of its divisors is an integer number (17418132).
Almost surely, 2228036487 is an apocalyptic number.
228036487 is a deficient number, since it is larger than the sum of its proper divisors (50653625).
228036487 is a wasteful number, since it uses less digits than its factorization.
228036487 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19098.
The product of its (nonzero) digits is 129024, while the sum is 40.
The square root of 228036487 is about 15100.8770275107. The cubic root of 228036487 is about 610.9440608881.
The spelling of 228036487 in words is "two hundred twenty-eight million, thirty-six thousand, four hundred eighty-seven".
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