Base | Representation |
---|---|
bin | 1010011011011… |
… | …01110000011000 |
3 | 20002121111212200 |
4 | 11031231300120 |
5 | 134343400433 |
6 | 12403010200 |
7 | 2111402502 |
oct | 515556030 |
9 | 202544780 |
10 | 87481368 |
11 | 45421057 |
12 | 25369960 |
13 | 1517c730 |
14 | b892d72 |
15 | 7a30613 |
hex | 536dc18 |
87481368 has 48 divisors (see below), whose sum is σ = 255156720. Its totient is φ = 26917056.
The previous prime is 87481343. The next prime is 87481379. The reversal of 87481368 is 86318478.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45796 + ... + 47667.
It is an arithmetic number, because the mean of its divisors is an integer number (5315765).
Almost surely, 287481368 is an apocalyptic number.
It is an amenable number.
87481368 is an abundant number, since it is smaller than the sum of its proper divisors (167675352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87481368 is a wasteful number, since it uses less digits than its factorization.
87481368 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93488 (or 93481 counting only the distinct ones).
The product of its digits is 258048, while the sum is 45.
The square root of 87481368 is about 9353.1474916201. The cubic root of 87481368 is about 443.9204873442.
The spelling of 87481368 in words is "eighty-seven million, four hundred eighty-one thousand, three hundred sixty-eight".
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