Base | Representation |
---|---|
bin | 1010011101011… |
… | …11011001110100 |
3 | 20010010011201122 |
4 | 11032233121310 |
5 | 134431002020 |
6 | 12412443112 |
7 | 2113602443 |
oct | 516573164 |
9 | 203104648 |
10 | 87750260 |
11 | 45595084 |
12 | 25479498 |
13 | 15244c40 |
14 | b922d5a |
15 | 7a85125 |
hex | 53af674 |
87750260 has 48 divisors (see below), whose sum is σ = 210134736. Its totient is φ = 30492672.
The previous prime is 87750239. The next prime is 87750319. The reversal of 87750260 is 6205778.
It can be written as a sum of positive squares in 8 ways, for example, as 7862416 + 79887844 = 2804^2 + 8938^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 87750260.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5507 + ... + 14346.
It is an arithmetic number, because the mean of its divisors is an integer number (4377807).
Almost surely, 287750260 is an apocalyptic number.
It is an amenable number.
87750260 is an abundant number, since it is smaller than the sum of its proper divisors (122384476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87750260 is a wasteful number, since it uses less digits than its factorization.
87750260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19892 (or 19890 counting only the distinct ones).
The product of its (nonzero) digits is 23520, while the sum is 35.
The square root of 87750260 is about 9367.5108753606. The cubic root of 87750260 is about 444.3748491490.
The spelling of 87750260 in words is "eighty-seven million, seven hundred fifty thousand, two hundred sixty".
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