Base | Representation |
---|---|
bin | 1010011100100… |
… | …01011000011101 |
3 | 20002212221001022 |
4 | 11032101120131 |
5 | 134413033133 |
6 | 12410053525 |
7 | 2112551105 |
oct | 516213035 |
9 | 202787038 |
10 | 87627293 |
11 | 45510756 |
12 | 2541a2a5 |
13 | 15200c90 |
14 | b8d0205 |
15 | 7a5d998 |
hex | 539161d |
87627293 has 8 divisors (see below), whose sum is σ = 95915736. Its totient is φ = 79560000.
The previous prime is 87627251. The next prime is 87627301. The reversal of 87627293 is 39272678.
It can be written as a sum of positive squares in 4 ways, for example, as 727609 + 86899684 = 853^2 + 9322^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87627293 - 212 = 87623197 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87627203) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 54458 + ... + 56043.
It is an arithmetic number, because the mean of its divisors is an integer number (11989467).
Almost surely, 287627293 is an apocalyptic number.
It is an amenable number.
87627293 is a deficient number, since it is larger than the sum of its proper divisors (8288443).
87627293 is a wasteful number, since it uses less digits than its factorization.
87627293 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 110575.
The product of its digits is 254016, while the sum is 44.
The square root of 87627293 is about 9360.9450911754. The cubic root of 87627293 is about 444.1671803001.
The spelling of 87627293 in words is "eighty-seven million, six hundred twenty-seven thousand, two hundred ninety-three".
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