Base | Representation |
---|---|
bin | 1010011000100… |
… | …01001010011010 |
3 | 20001220020121221 |
4 | 11030101022122 |
5 | 134244231411 |
6 | 12350522254 |
7 | 2105233000 |
oct | 514211232 |
9 | 201806557 |
10 | 87102106 |
11 | 45192113 |
12 | 2520638a |
13 | 15078c10 |
14 | b7d4a70 |
15 | 79a8071 |
hex | 531129a |
87102106 has 32 divisors (see below), whose sum is σ = 164102400. Its totient is φ = 34454448.
The previous prime is 87102091. The next prime is 87102131. The reversal of 87102106 is 60120178.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4035 + ... + 13801.
It is an arithmetic number, because the mean of its divisors is an integer number (5128200).
Almost surely, 287102106 is an apocalyptic number.
87102106 is a deficient number, since it is larger than the sum of its proper divisors (77000294).
87102106 is a wasteful number, since it uses less digits than its factorization.
87102106 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9803 (or 9789 counting only the distinct ones).
The product of its (nonzero) digits is 672, while the sum is 25.
The square root of 87102106 is about 9332.8509041986. The cubic root of 87102106 is about 443.2780417348.
It can be divided in two parts, 8710 and 2106, that added together give a square (10816 = 1042).
The spelling of 87102106 in words is "eighty-seven million, one hundred two thousand, one hundred six".
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