Base | Representation |
---|---|
bin | 1010011001111… |
… | …00100111011000 |
3 | 20002020021202212 |
4 | 11030330213120 |
5 | 134320430323 |
6 | 12354414252 |
7 | 2106603620 |
oct | 514744730 |
9 | 202207685 |
10 | 87280088 |
11 | 452a3905 |
12 | 25291388 |
13 | 1510bc2c |
14 | b83d880 |
15 | 79e0b78 |
hex | 533c9d8 |
87280088 has 16 divisors (see below), whose sum is σ = 187028880. Its totient is φ = 37405728.
The previous prime is 87280079. The next prime is 87280099. The reversal of 87280088 is 88008278.
It is a super-2 number, since 2×872800882 = 15235627522575488, which contains 22 as substring.
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, 779231 + ... + 779342.
It is an arithmetic number, because the mean of its divisors is an integer number (11689305).
Almost surely, 287280088 is an apocalyptic number.
It is an amenable number.
87280088 is an abundant number, since it is smaller than the sum of its proper divisors (99748792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87280088 is a wasteful number, since it uses less digits than its factorization.
87280088 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1558586 (or 1558582 counting only the distinct ones).
The product of its (nonzero) digits is 57344, while the sum is 41.
The square root of 87280088 is about 9342.3812810225. The cubic root of 87280088 is about 443.5797636232.
The spelling of 87280088 in words is "eighty-seven million, two hundred eighty thousand, eighty-eight".
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