Base | Representation |
---|---|
bin | 1010011011100… |
… | …11100010011010 |
3 | 20002122201100210 |
4 | 11031303202122 |
5 | 134400130200 |
6 | 12403311550 |
7 | 2111531523 |
oct | 515634232 |
9 | 202581323 |
10 | 87505050 |
11 | 45437926 |
12 | 2537b5b6 |
13 | 1518a449 |
14 | b89b84a |
15 | 7a37650 |
hex | 537389a |
87505050 has 24 divisors (see below), whose sum is σ = 217012896. Its totient is φ = 23334640.
The previous prime is 87505039. The next prime is 87505057. The reversal of 87505050 is 5050578.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 87504999 and 87505017.
It is not an unprimeable number, because it can be changed into a prime (87505057) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291534 + ... + 291833.
It is an arithmetic number, because the mean of its divisors is an integer number (9042204).
Almost surely, 287505050 is an apocalyptic number.
87505050 is an abundant number, since it is smaller than the sum of its proper divisors (129507846).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87505050 is a wasteful number, since it uses less digits than its factorization.
87505050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 583382 (or 583377 counting only the distinct ones).
The product of its (nonzero) digits is 7000, while the sum is 30.
The square root of 87505050 is about 9354.4133968945. The cubic root of 87505050 is about 443.9605414979.
The spelling of 87505050 in words is "eighty-seven million, five hundred five thousand, fifty".
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