Base | Representation |
---|---|
bin | 11101000001110… |
… | …011110111111111 |
3 | 1020221101212110101 |
4 | 131001303313333 |
5 | 1444133421022 |
6 | 120154221531 |
7 | 15032356363 |
oct | 3501636777 |
9 | 1227355411 |
10 | 487013887 |
11 | 22a9a7818 |
12 | 1171248a7 |
13 | 79b892c9 |
14 | 489752a3 |
15 | 2cb50627 |
hex | 1d073dff |
487013887 has 4 divisors (see below), whose sum is σ = 488205040. Its totient is φ = 485822736.
The previous prime is 487013881. The next prime is 487013899. The reversal of 487013887 is 788310784.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 487013887 - 211 = 487011839 is a prime.
It is a super-2 number, since 2×4870138872 = 474365052261697538, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487013881) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594963 + ... + 595780.
It is an arithmetic number, because the mean of its divisors is an integer number (122051260).
Almost surely, 2487013887 is an apocalyptic number.
487013887 is a deficient number, since it is larger than the sum of its proper divisors (1191153).
487013887 is a wasteful number, since it uses less digits than its factorization.
487013887 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1191152.
The product of its (nonzero) digits is 301056, while the sum is 46.
The square root of 487013887 is about 22068.3911284896. The cubic root of 487013887 is about 786.7687742313.
The spelling of 487013887 in words is "four hundred eighty-seven million, thirteen thousand, eight hundred eighty-seven".
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