Base | Representation |
---|---|
bin | 1010011000000… |
… | …00100110101000 |
3 | 20001202210120212 |
4 | 11030000212220 |
5 | 134240044110 |
6 | 12345240252 |
7 | 2104531154 |
oct | 514004650 |
9 | 201683525 |
10 | 87034280 |
11 | 45146163 |
12 | 25193088 |
13 | 15054098 |
14 | b7b8064 |
15 | 7992e05 |
hex | 53009a8 |
87034280 has 16 divisors (see below), whose sum is σ = 195827220. Its totient is φ = 34813696.
The previous prime is 87034253. The next prime is 87034289. The reversal of 87034280 is 8243078.
It can be written as a sum of positive squares in 2 ways, for example, as 71808676 + 15225604 = 8474^2 + 3902^2 .
It is not an unprimeable number, because it can be changed into a prime (87034289) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087889 + ... + 1087968.
Almost surely, 287034280 is an apocalyptic number.
It is an amenable number.
87034280 is an abundant number, since it is smaller than the sum of its proper divisors (108792940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87034280 is a wasteful number, since it uses less digits than its factorization.
87034280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2175868 (or 2175864 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 32.
The square root of 87034280 is about 9329.2164729949. The cubic root of 87034280 is about 443.1629523481.
The spelling of 87034280 in words is "eighty-seven million, thirty-four thousand, two hundred eighty".
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