Base | Representation |
---|---|
bin | 1010011010000… |
… | …10000100111101 |
3 | 20002021102110111 |
4 | 11031002010331 |
5 | 134322134321 |
6 | 12355110021 |
7 | 2110026061 |
oct | 515020475 |
9 | 202242414 |
10 | 87302461 |
11 | 453096a4 |
12 | 252a2311 |
13 | 1511917c |
14 | b847aa1 |
15 | 79e75e1 |
hex | 534213d |
87302461 has 4 divisors (see below), whose sum is σ = 87969024. Its totient is φ = 86635900.
The previous prime is 87302459. The next prime is 87302483. The reversal of 87302461 is 16420378.
It is the 3815-th star number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 87302461 - 21 = 87302459 is a prime.
It is a Smith number, since the sum of its digits (31) 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 congruent number.
It is not an unprimeable number, because it can be changed into a prime (87302401) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333085 + ... + 333346.
It is an arithmetic number, because the mean of its divisors is an integer number (21992256).
Almost surely, 287302461 is an apocalyptic number.
It is an amenable number.
87302461 is a deficient number, since it is larger than the sum of its proper divisors (666563).
87302461 is a wasteful number, since it uses less digits than its factorization.
87302461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 666562.
The product of its (nonzero) digits is 8064, while the sum is 31.
The square root of 87302461 is about 9343.5785970901. The cubic root of 87302461 is about 443.6176621574.
The spelling of 87302461 in words is "eighty-seven million, three hundred two thousand, four hundred sixty-one".
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