Base | Representation |
---|---|
bin | 1010011001111… |
… | …00100111010011 |
3 | 20002020021202200 |
4 | 11030330213103 |
5 | 134320430313 |
6 | 12354414243 |
7 | 2106603612 |
oct | 514744723 |
9 | 202207680 |
10 | 87280083 |
11 | 452a3900 |
12 | 25291383 |
13 | 1510bc27 |
14 | b83d879 |
15 | 79e0b73 |
hex | 533c9d3 |
87280083 has 18 divisors (see below), whose sum is σ = 138575892. Its totient is φ = 52896360.
The previous prime is 87280079. The next prime is 87280099. The reversal of 87280083 is 38008278.
It is not a de Polignac number, because 87280083 - 22 = 87280079 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87280013) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38985 + ... + 41162.
Almost surely, 287280083 is an apocalyptic number.
87280083 is a deficient number, since it is larger than the sum of its proper divisors (51295809).
87280083 is a wasteful number, since it uses less digits than its factorization.
87280083 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 80175 (or 80161 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 87280083 is about 9342.3810134248. The cubic root of 87280083 is about 443.5797551528.
The spelling of 87280083 in words is "eighty-seven million, two hundred eighty thousand, eighty-three".
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