Base | Representation |
---|---|
bin | 1010011011011… |
… | …10101111101111 |
3 | 20002121201102212 |
4 | 11031232233233 |
5 | 134344013143 |
6 | 12403041035 |
7 | 2111420354 |
oct | 515565757 |
9 | 202551385 |
10 | 87485423 |
11 | 45424103 |
12 | 2537017b |
13 | 1518152c |
14 | b89462b |
15 | 7a31918 |
hex | 536ebef |
87485423 has 2 divisors, whose sum is σ = 87485424. Its totient is φ = 87485422.
The previous prime is 87485413. The next prime is 87485459. The reversal of 87485423 is 32458478.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 87485423 - 210 = 87484399 is a prime.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87485413) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43742711 + 43742712.
It is an arithmetic number, because the mean of its divisors is an integer number (43742712).
Almost surely, 287485423 is an apocalyptic number.
87485423 is a deficient number, since it is larger than the sum of its proper divisors (1).
87485423 is an equidigital number, since it uses as much as digits as its factorization.
87485423 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 215040, while the sum is 41.
The square root of 87485423 is about 9353.3642610560. The cubic root of 87485423 is about 443.9273462133.
The spelling of 87485423 in words is "eighty-seven million, four hundred eighty-five thousand, four hundred twenty-three".
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