Base | Representation |
---|---|
bin | 1010010111111… |
… | …00010000111011 |
3 | 20001201220012121 |
4 | 11023330100323 |
5 | 134234012012 |
6 | 12345022111 |
7 | 2104425304 |
oct | 513742073 |
9 | 201656177 |
10 | 87016507 |
11 | 45133876 |
12 | 25184937 |
13 | 15048c76 |
14 | b7b17ab |
15 | 798ca07 |
hex | 52fc43b |
87016507 has 2 divisors, whose sum is σ = 87016508. Its totient is φ = 87016506.
The previous prime is 87016499. The next prime is 87016529. The reversal of 87016507 is 70561078.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 87016507 - 23 = 87016499 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is not a weakly prime, because it can be changed into another prime (87016537) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43508253 + 43508254.
It is an arithmetic number, because the mean of its divisors is an integer number (43508254).
Almost surely, 287016507 is an apocalyptic number.
87016507 is a deficient number, since it is larger than the sum of its proper divisors (1).
87016507 is an equidigital number, since it uses as much as digits as its factorization.
87016507 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 11760, while the sum is 34.
The square root of 87016507 is about 9328.2638792007. The cubic root of 87016507 is about 443.1327846512.
The spelling of 87016507 in words is "eighty-seven million, sixteen thousand, five hundred seven".
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