Base | Representation |
---|---|
bin | 11110001100111000… |
… | …10101011010010011 |
3 | 1112211222220122011221 |
4 | 33012130111122103 |
5 | 231201314442022 |
6 | 11240530545511 |
7 | 1112542403503 |
oct | 170634253223 |
9 | 45758818157 |
10 | 16214218387 |
11 | 697055a294 |
12 | 3186138297 |
13 | 16b527b183 |
14 | adb5b5a03 |
15 | 64d70ccc7 |
hex | 3c6715693 |
16214218387 has 2 divisors, whose sum is σ = 16214218388. Its totient is φ = 16214218386.
The previous prime is 16214218351. The next prime is 16214218429. The reversal of 16214218387 is 78381241261.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 16214218387 - 27 = 16214218259 is a prime.
It is not a weakly prime, because it can be changed into another prime (16214212387) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8107109193 + 8107109194.
It is an arithmetic number, because the mean of its divisors is an integer number (8107109194).
Almost surely, 216214218387 is an apocalyptic number.
16214218387 is a deficient number, since it is larger than the sum of its proper divisors (1).
16214218387 is an equidigital number, since it uses as much as digits as its factorization.
16214218387 is an evil number, because the sum of its binary digits is even.
The product of its digits is 129024, while the sum is 43.
The spelling of 16214218387 in words is "sixteen billion, two hundred fourteen million, two hundred eighteen thousand, three hundred eighty-seven".
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