Base | Representation |
---|---|
bin | 1010011000100… |
… | …01101110111001 |
3 | 20001220100211102 |
4 | 11030101232321 |
5 | 134244320231 |
6 | 12350541145 |
7 | 2105242544 |
oct | 514215671 |
9 | 201810742 |
10 | 87104441 |
11 | 45193946 |
12 | 252077b5 |
13 | 15079cb8 |
14 | b7d585b |
15 | 79a8acb |
hex | 5311bb9 |
87104441 has 2 divisors, whose sum is σ = 87104442. Its totient is φ = 87104440.
The previous prime is 87104419. The next prime is 87104477. The reversal of 87104441 is 14440178.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 73891216 + 13213225 = 8596^2 + 3635^2 .
It is a cyclic number.
It is not a de Polignac number, because 87104441 - 218 = 86842297 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (87106441) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43552220 + 43552221.
It is an arithmetic number, because the mean of its divisors is an integer number (43552221).
Almost surely, 287104441 is an apocalyptic number.
It is an amenable number.
87104441 is a deficient number, since it is larger than the sum of its proper divisors (1).
87104441 is an equidigital number, since it uses as much as digits as its factorization.
87104441 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3584, while the sum is 29.
The square root of 87104441 is about 9332.9759991120. The cubic root of 87104441 is about 443.2820027756.
The spelling of 87104441 in words is "eighty-seven million, one hundred four thousand, four hundred forty-one".
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