Base | Representation |
---|---|
bin | 11101000011001… |
… | …101011010011111 |
3 | 1020222002111112210 |
4 | 131003031122133 |
5 | 1444232140024 |
6 | 120210131503 |
7 | 15035444544 |
oct | 3503153237 |
9 | 1228074483 |
10 | 487380639 |
11 | 230128319 |
12 | 117280b93 |
13 | 79c87215 |
14 | 48a2cbcb |
15 | 2cbc4129 |
hex | 1d0cd69f |
487380639 has 16 divisors (see below), whose sum is σ = 660060000. Its totient is φ = 319850496.
The previous prime is 487380629. The next prime is 487380683. The reversal of 487380639 is 936083784.
It is not a de Polignac number, because 487380639 - 219 = 486856351 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487380629) 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, 45687 + ... + 55335.
It is an arithmetic number, because the mean of its divisors is an integer number (41253750).
Almost surely, 2487380639 is an apocalyptic number.
487380639 is a deficient number, since it is larger than the sum of its proper divisors (172679361).
487380639 is a wasteful number, since it uses less digits than its factorization.
487380639 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9914.
The product of its (nonzero) digits is 870912, while the sum is 48.
The square root of 487380639 is about 22076.6990059655. The cubic root of 487380639 is about 786.9662200863.
The spelling of 487380639 in words is "four hundred eighty-seven million, three hundred eighty thousand, six hundred thirty-nine".
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