Base | Representation |
---|---|
bin | 1010011000100… |
… | …00101100000001 |
3 | 20001220010221220 |
4 | 11030100230001 |
5 | 134244201121 |
6 | 12350505253 |
7 | 2105224221 |
oct | 514205401 |
9 | 201803856 |
10 | 87100161 |
11 | 45190705 |
12 | 25205229 |
13 | 15078075 |
14 | b7d4081 |
15 | 79a76c6 |
hex | 5310b01 |
87100161 has 8 divisors (see below), whose sum is σ = 122245920. Its totient is φ = 55010592.
The previous prime is 87100141. The next prime is 87100171. The reversal of 87100161 is 16100178.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87100161 - 219 = 86575873 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87100141) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763980 + ... + 764093.
It is an arithmetic number, because the mean of its divisors is an integer number (15280740).
Almost surely, 287100161 is an apocalyptic number.
It is an amenable number.
87100161 is a deficient number, since it is larger than the sum of its proper divisors (35145759).
87100161 is a wasteful number, since it uses less digits than its factorization.
87100161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1528095.
The product of its (nonzero) digits is 336, while the sum is 24.
The square root of 87100161 is about 9332.7467018022. The cubic root of 87100161 is about 443.2747422271.
The spelling of 87100161 in words is "eighty-seven million, one hundred thousand, one hundred sixty-one".
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