Base | Representation |
---|---|
bin | 101000101111010001… |
… | …0100010100000101111 |
3 | 22100211000022202121220 |
4 | 1101132202202200233 |
5 | 2413132234132404 |
6 | 104105032554423 |
7 | 6214654061466 |
oct | 1213642424057 |
9 | 270730282556 |
10 | 87485458479 |
11 | 34114295901 |
12 | 14b56852a13 |
13 | 8332ba10a3 |
14 | 433cd839dd |
15 | 242072c4d9 |
hex | 145e8a282f |
87485458479 has 32 divisors (see below), whose sum is σ = 119528048640. Its totient is φ = 56899971072.
The previous prime is 87485458469. The next prime is 87485458481. The reversal of 87485458479 is 97485458478.
It is a happy number.
It is not a de Polignac number, because 87485458479 - 27 = 87485458351 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87485458469) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13298439 + ... + 13305015.
It is an arithmetic number, because the mean of its divisors is an integer number (3735251520).
Almost surely, 287485458479 is an apocalyptic number.
87485458479 is a deficient number, since it is larger than the sum of its proper divisors (32042590161).
87485458479 is a wasteful number, since it uses less digits than its factorization.
87485458479 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7199.
The product of its digits is 361267200, while the sum is 69.
Subtracting 87485458479 from its reverse (97485458478), we obtain a palindrome (9999999999).
The spelling of 87485458479 in words is "eighty-seven billion, four hundred eighty-five million, four hundred fifty-eight thousand, four hundred seventy-nine".
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