Base | Representation |
---|---|
bin | 1010011011011… |
… | …11011111000111 |
3 | 20002121212121011 |
4 | 11031233133013 |
5 | 134344112310 |
6 | 12403103051 |
7 | 2111432245 |
oct | 515573707 |
9 | 202555534 |
10 | 87488455 |
11 | 4542640a |
12 | 25371a87 |
13 | 15182a22 |
14 | b895795 |
15 | 7a3278a |
hex | 536f7c7 |
87488455 has 4 divisors (see below), whose sum is σ = 104986152. Its totient is φ = 69990760.
The previous prime is 87488449. The next prime is 87488491. The reversal of 87488455 is 55488478.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 87488455 - 219 = 86964167 is a prime.
It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 87488399 and 87488408.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8748841 + ... + 8748850.
It is an arithmetic number, because the mean of its divisors is an integer number (26246538).
Almost surely, 287488455 is an apocalyptic number.
87488455 is a deficient number, since it is larger than the sum of its proper divisors (17497697).
87488455 is a wasteful number, since it uses less digits than its factorization.
87488455 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17497696.
The product of its digits is 1433600, while the sum is 49.
The square root of 87488455 is about 9353.5263403702. The cubic root of 87488455 is about 443.9324745807.
The spelling of 87488455 in words is "eighty-seven million, four hundred eighty-eight thousand, four hundred fifty-five".
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