Base | Representation |
---|---|
bin | 111101011100… |
… | …100100100101 |
3 | 1010022100202200 |
4 | 331130210211 |
5 | 13110422223 |
6 | 1333125113 |
7 | 253625361 |
oct | 75344445 |
9 | 33270680 |
10 | 16107813 |
11 | 9102047 |
12 | 5489799 |
13 | 344c967 |
14 | 21d42a1 |
15 | 1632a43 |
hex | f5c925 |
16107813 has 12 divisors (see below), whose sum is σ = 23706540. Its totient is φ = 10535616.
The previous prime is 16107787. The next prime is 16107851. The reversal of 16107813 is 31870161.
It can be written as a sum of positive squares in 2 ways, for example, as 12659364 + 3448449 = 3558^2 + 1857^2 .
It is not a de Polignac number, because 16107813 - 25 = 16107781 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16107853) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16408 + ... + 17361.
It is an arithmetic number, because the mean of its divisors is an integer number (1975545).
Almost surely, 216107813 is an apocalyptic number.
It is an amenable number.
16107813 is a deficient number, since it is larger than the sum of its proper divisors (7598727).
16107813 is a wasteful number, since it uses less digits than its factorization.
16107813 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33828 (or 33825 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 27.
The square root of 16107813 is about 4013.4539987397. The cubic root of 16107813 is about 252.5489262443.
Adding to 16107813 its reverse (31870161), we get a palindrome (47977974).
The spelling of 16107813 in words is "sixteen million, one hundred seven thousand, eight hundred thirteen".
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