Base | Representation |
---|---|
bin | 101111010100… |
… | …110101000111 |
3 | 212100021221201 |
4 | 233110311013 |
5 | 11133443322 |
6 | 1121523331 |
7 | 210310231 |
oct | 57246507 |
9 | 25307851 |
10 | 12406087 |
11 | 7003971 |
12 | 41a3547 |
13 | 2754aa5 |
14 | 190d251 |
15 | 1150d27 |
hex | bd4d47 |
12406087 has 2 divisors, whose sum is σ = 12406088. Its totient is φ = 12406086.
The previous prime is 12406057. The next prime is 12406099. The reversal of 12406087 is 78060421.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12406087 - 219 = 11881799 is a prime.
It is a Chen prime.
It is a zygodrome in base 5.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12406027) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6203043 + 6203044.
It is an arithmetic number, because the mean of its divisors is an integer number (6203044).
Almost surely, 212406087 is an apocalyptic number.
12406087 is a deficient number, since it is larger than the sum of its proper divisors (1).
12406087 is an equidigital number, since it uses as much as digits as its factorization.
12406087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2688, while the sum is 28.
The square root of 12406087 is about 3522.2275622112. The cubic root of 12406087 is about 231.4967726538.
The spelling of 12406087 in words is "twelve million, four hundred six thousand, eighty-seven".
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