Base | Representation |
---|---|
bin | 1010011010011… |
… | …10110001000110 |
3 | 20002101001202120 |
4 | 11031032301012 |
5 | 134330320223 |
6 | 12400150410 |
7 | 2110333443 |
oct | 515166106 |
9 | 202331676 |
10 | 87354438 |
11 | 45344756 |
12 | 25308406 |
13 | 15136a22 |
14 | b85c9ca |
15 | 7a07be3 |
hex | 534ec46 |
87354438 has 32 divisors (see below), whose sum is σ = 190252800. Its totient is φ = 26633376.
The previous prime is 87354431. The next prime is 87354451. The reversal of 87354438 is 83445378.
It is a self number, because there is not a number n which added to its sum of digits gives 87354438.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87354431) 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 15 ways as a sum of consecutive naturals, for example, 9906 + ... + 16517.
It is an arithmetic number, because the mean of its divisors is an integer number (5945400).
Almost surely, 287354438 is an apocalyptic number.
87354438 is an abundant number, since it is smaller than the sum of its proper divisors (102898362).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87354438 is a wasteful number, since it uses less digits than its factorization.
87354438 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26476.
The product of its digits is 322560, while the sum is 42.
The square root of 87354438 is about 9346.3596121699. The cubic root of 87354438 is about 443.7056831230.
The spelling of 87354438 in words is "eighty-seven million, three hundred fifty-four thousand, four hundred thirty-eight".
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