Base | Representation |
---|---|
bin | 1010011000000… |
… | …00010010011010 |
3 | 20001202201210221 |
4 | 11030000102122 |
5 | 134240023421 |
6 | 12345230254 |
7 | 2104524325 |
oct | 514002232 |
9 | 201681727 |
10 | 87032986 |
11 | 45145197 |
12 | 2519238a |
13 | 15053611 |
14 | b7b77bc |
15 | 7992841 |
hex | 530049a |
87032986 has 8 divisors (see below), whose sum is σ = 131426100. Its totient is φ = 43224288.
The previous prime is 87032969. The next prime is 87032987. The reversal of 87032986 is 68923078.
It can be written as a sum of positive squares in 2 ways, for example, as 86843761 + 189225 = 9319^2 + 435^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (87032987) 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, 145731 + ... + 146326.
Almost surely, 287032986 is an apocalyptic number.
87032986 is a deficient number, since it is larger than the sum of its proper divisors (44393114).
87032986 is a wasteful number, since it uses less digits than its factorization.
87032986 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 292208.
The product of its (nonzero) digits is 145152, while the sum is 43.
The square root of 87032986 is about 9329.1471207179. The cubic root of 87032986 is about 443.1607560652.
It can be divided in two parts, 870 and 32986, that added together give a square (33856 = 1842).
The spelling of 87032986 in words is "eighty-seven million, thirty-two thousand, nine hundred eighty-six".
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