Base | Representation |
---|---|
bin | 11110100001001001010111 |
3 | 120001110001112 |
4 | 132201021113 |
5 | 4022000322 |
6 | 443245235 |
7 | 124666604 |
oct | 36411127 |
9 | 16043045 |
10 | 8000087 |
11 | 4574647 |
12 | 281981b |
13 | 18714a4 |
14 | 10c36ab |
15 | a805e2 |
hex | 7a1257 |
8000087 has 2 divisors, whose sum is σ = 8000088. Its totient is φ = 8000086.
The previous prime is 8000071. The next prime is 8000099. The reversal of 8000087 is 7800008.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 8000087 - 24 = 8000071 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (8000017) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000043 + 4000044.
It is an arithmetic number, because the mean of its divisors is an integer number (4000044).
Almost surely, 28000087 is an apocalyptic number.
8000087 is a deficient number, since it is larger than the sum of its proper divisors (1).
8000087 is an equidigital number, since it uses as much as digits as its factorization.
8000087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 448, while the sum is 23.
The square root of 8000087 is about 2828.4425042769. The cubic root of 8000087 is about 200.0007249974. Note that the first 3 decimals are identical.
The spelling of 8000087 in words is "eight million, eighty-seven", and thus it is an aban number and an uban number.
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