Base | Representation |
---|---|
bin | 1010011111010… |
… | …01010001111100 |
3 | 20010120012220210 |
4 | 11033221101330 |
5 | 140011043244 |
6 | 12421512420 |
7 | 2115610545 |
oct | 517512174 |
9 | 203505823 |
10 | 87987324 |
11 | 457371a7 |
12 | 25572710 |
13 | 152c8b09 |
14 | b9854cc |
15 | 7ad04b9 |
hex | 53e947c |
87987324 has 24 divisors (see below), whose sum is σ = 206191440. Its totient is φ = 29202304.
The previous prime is 87987323. The next prime is 87987371. The reversal of 87987324 is 42378978.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87987323) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12939 + ... + 18530.
It is an arithmetic number, because the mean of its divisors is an integer number (8591310).
Almost surely, 287987324 is an apocalyptic number.
It is an amenable number.
87987324 is an abundant number, since it is smaller than the sum of its proper divisors (118204116).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87987324 is a wasteful number, since it uses less digits than its factorization.
87987324 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31709 (or 31707 counting only the distinct ones).
The product of its digits is 677376, while the sum is 48.
The square root of 87987324 is about 9380.1558622445. The cubic root of 87987324 is about 444.7746601401.
The spelling of 87987324 in words is "eighty-seven million, nine hundred eighty-seven thousand, three hundred twenty-four".
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