Base | Representation |
---|---|
bin | 101000100011111000… |
… | …1110010111100110101 |
3 | 22022211101202102120210 |
4 | 1101013301302330311 |
5 | 2411342004111010 |
6 | 104003112020033 |
7 | 6202336142136 |
oct | 1210761627465 |
9 | 268741672523 |
10 | 87103582005 |
11 | 33a38779410 |
12 | 14a6a991619 |
13 | 82a1a36a8b |
14 | 4304379c8d |
15 | 23ebe48b20 |
hex | 1447c72f35 |
87103582005 has 64 divisors (see below), whose sum is σ = 156411648000. Its totient is φ = 41020312320.
The previous prime is 87103581991. The next prime is 87103582067. The reversal of 87103582005 is 50028530178.
It is not a de Polignac number, because 87103582005 - 28 = 87103581749 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3644986 + ... + 3668804.
It is an arithmetic number, because the mean of its divisors is an integer number (2443932000).
Almost surely, 287103582005 is an apocalyptic number.
It is an amenable number.
87103582005 is a deficient number, since it is larger than the sum of its proper divisors (69308065995).
87103582005 is a wasteful number, since it uses less digits than its factorization.
87103582005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24474.
The product of its (nonzero) digits is 67200, while the sum is 39.
The spelling of 87103582005 in words is "eighty-seven billion, one hundred three million, five hundred eighty-two thousand, five".
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