Base | Representation |
---|---|
bin | 10100001000011… |
… | …10011111010111 |
3 | 102202202222221001 |
4 | 22010032133113 |
5 | 321213130322 |
6 | 24431404131 |
7 | 4120312525 |
oct | 1204163727 |
9 | 382688831 |
10 | 168880087 |
11 | 87368122 |
12 | 48683647 |
13 | 28cac65c |
14 | 18601315 |
15 | ec5d827 |
hex | a10e7d7 |
168880087 has 2 divisors, whose sum is σ = 168880088. Its totient is φ = 168880086.
The previous prime is 168880073. The next prime is 168880093. The reversal of 168880087 is 780088861.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 168880087 - 223 = 160491479 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (168880067) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84440043 + 84440044.
It is an arithmetic number, because the mean of its divisors is an integer number (84440044).
Almost surely, 2168880087 is an apocalyptic number.
168880087 is a deficient number, since it is larger than the sum of its proper divisors (1).
168880087 is an equidigital number, since it uses as much as digits as its factorization.
168880087 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 172032, while the sum is 46.
The square root of 168880087 is about 12995.3871431366. The cubic root of 168880087 is about 552.7466867251.
The spelling of 168880087 in words is "one hundred sixty-eight million, eight hundred eighty thousand, eighty-seven".
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