Base | Representation |
---|---|
bin | 111101011111… |
… | …100011010111 |
3 | 1010022222111220 |
4 | 331133203113 |
5 | 13111320043 |
6 | 1333301423 |
7 | 254006103 |
oct | 75374327 |
9 | 33288456 |
10 | 16120023 |
11 | 9110237 |
12 | 5494873 |
13 | 345539a |
14 | 21d8903 |
15 | 1636483 |
hex | f5f8d7 |
16120023 has 4 divisors (see below), whose sum is σ = 21493368. Its totient is φ = 10746680.
The previous prime is 16119989. The next prime is 16120051. The reversal of 16120023 is 32002161.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32002161 = 3 ⋅10667387.
It is a cyclic number.
It is not a de Polignac number, because 16120023 - 26 = 16119959 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 16119984 and 16120011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16120073) 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 in 3 ways as a sum of consecutive naturals, for example, 2686668 + ... + 2686673.
It is an arithmetic number, because the mean of its divisors is an integer number (5373342).
Almost surely, 216120023 is an apocalyptic number.
16120023 is a deficient number, since it is larger than the sum of its proper divisors (5373345).
16120023 is an equidigital number, since it uses as much as digits as its factorization.
16120023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5373344.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 16120023 is about 4014.9748442549. The cubic root of 16120023 is about 252.6127222745.
Adding to 16120023 its reverse (32002161), we get a palindrome (48122184).
The spelling of 16120023 in words is "sixteen million, one hundred twenty thousand, twenty-three".
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