Base | Representation |
---|---|
bin | 111101111000… |
… | …101101101111 |
3 | 1010112012220002 |
4 | 331320231233 |
5 | 13123114322 |
6 | 1335414515 |
7 | 254615426 |
oct | 75705557 |
9 | 33465802 |
10 | 16223087 |
11 | 9180711 |
12 | 552443b |
13 | 349027a |
14 | 22242bd |
15 | 1656c92 |
hex | f78b6f |
16223087 has 2 divisors, whose sum is σ = 16223088. Its totient is φ = 16223086.
The previous prime is 16223063. The next prime is 16223089. The reversal of 16223087 is 78032261.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 16223087 - 26 = 16223023 is a prime.
Together with 16223089, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (16223089) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8111543 + 8111544.
It is an arithmetic number, because the mean of its divisors is an integer number (8111544).
Almost surely, 216223087 is an apocalyptic number.
16223087 is a deficient number, since it is larger than the sum of its proper divisors (1).
16223087 is an equidigital number, since it uses as much as digits as its factorization.
16223087 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4032, while the sum is 29.
The square root of 16223087 is about 4027.7893440447. The cubic root of 16223087 is about 253.1499421035.
The spelling of 16223087 in words is "sixteen million, two hundred twenty-three thousand, eighty-seven".
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