Base | Representation |
---|---|
bin | 101000100101101010… |
… | …1011011100111110100 |
3 | 22022222120001010221020 |
4 | 1101023111123213310 |
5 | 2412002243132114 |
6 | 104013043021140 |
7 | 6203662305540 |
oct | 1211325334764 |
9 | 268876033836 |
10 | 87163255284 |
11 | 33a69426876 |
12 | 14a8696a7b0 |
13 | 82b11cb101 |
14 | 430c270a20 |
15 | 24022d4aa9 |
hex | 144b55b9f4 |
87163255284 has 24 divisors (see below), whose sum is σ = 232435347648. Its totient is φ = 24903787200.
The previous prime is 87163255279. The next prime is 87163255331. The reversal of 87163255284 is 48255236178.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518828817 + ... + 518828984.
It is an arithmetic number, because the mean of its divisors is an integer number (9684806152).
Almost surely, 287163255284 is an apocalyptic number.
87163255284 is a gapful number since it is divisible by the number (84) formed by its first and last digit.
It is an amenable number.
87163255284 is an abundant number, since it is smaller than the sum of its proper divisors (145272092364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87163255284 is a wasteful number, since it uses less digits than its factorization.
87163255284 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1037657815 (or 1037657813 counting only the distinct ones).
The product of its digits is 3225600, while the sum is 51.
The spelling of 87163255284 in words is "eighty-seven billion, one hundred sixty-three million, two hundred fifty-five thousand, two hundred eighty-four".
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