Base | Representation |
---|---|
bin | 1010011000101… |
… | …11010011010010 |
3 | 20001221112010012 |
4 | 11030113103102 |
5 | 134301033000 |
6 | 12351234522 |
7 | 2105366210 |
oct | 514272322 |
9 | 201845105 |
10 | 87127250 |
11 | 451a9aa1 |
12 | 25218a42 |
13 | 150874b2 |
14 | b7ddcb0 |
15 | 79b0735 |
hex | 53174d2 |
87127250 has 32 divisors (see below), whose sum is σ = 186406272. Its totient is φ = 29871600.
The previous prime is 87127231. The next prime is 87127259. The reversal of 87127250 is 5272178.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87127259) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23144 + ... + 26643.
It is an arithmetic number, because the mean of its divisors is an integer number (5825196).
Almost surely, 287127250 is an apocalyptic number.
87127250 is an abundant number, since it is smaller than the sum of its proper divisors (99279022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87127250 is a wasteful number, since it uses less digits than its factorization.
87127250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49811 (or 49801 counting only the distinct ones).
The product of its (nonzero) digits is 7840, while the sum is 32.
The square root of 87127250 is about 9334.1978766255. The cubic root of 87127250 is about 443.3206917206.
The spelling of 87127250 in words is "eighty-seven million, one hundred twenty-seven thousand, two hundred fifty".
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