Base | Representation |
---|---|
bin | 11110010111010001… |
… | …00101111011011001 |
3 | 1120002001210202011221 |
4 | 33023220211323121 |
5 | 231341114132344 |
6 | 11253321452041 |
7 | 1114650626005 |
oct | 171350457331 |
9 | 46061722157 |
10 | 16301317849 |
11 | 6a0573a413 |
12 | 31ab341021 |
13 | 16ca325b0b |
14 | b08da9705 |
15 | 6561b5184 |
hex | 3cba25ed9 |
16301317849 has 2 divisors, whose sum is σ = 16301317850. Its totient is φ = 16301317848.
The previous prime is 16301317847. The next prime is 16301317913. The reversal of 16301317849 is 94871310361.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16070125824 + 231192025 = 126768^2 + 15205^2 .
It is an emirp because it is prime and its reverse (94871310361) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 16301317849 - 21 = 16301317847 is a prime.
It is a super-2 number, since 2×163013178492 (a number of 21 digits) contains 22 as substring.
Together with 16301317847, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (16301317847) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8150658924 + 8150658925.
It is an arithmetic number, because the mean of its divisors is an integer number (8150658925).
Almost surely, 216301317849 is an apocalyptic number.
It is an amenable number.
16301317849 is a deficient number, since it is larger than the sum of its proper divisors (1).
16301317849 is an equidigital number, since it uses as much as digits as its factorization.
16301317849 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 108864, while the sum is 43.
The spelling of 16301317849 in words is "sixteen billion, three hundred one million, three hundred seventeen thousand, eight hundred forty-nine".
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