Base | Representation |
---|---|
bin | 111101111101… |
… | …110100111001 |
3 | 1010120021121120 |
4 | 331331310321 |
5 | 13124302100 |
6 | 1340055453 |
7 | 255033450 |
oct | 75756471 |
9 | 33507546 |
10 | 16244025 |
11 | 9195416 |
12 | 5534589 |
13 | 3499965 |
14 | 222bb97 |
15 | 165d0a0 |
hex | f7dd39 |
16244025 has 24 divisors (see below), whose sum is σ = 30694464. Its totient is φ = 7425600.
The previous prime is 16244021. The next prime is 16244047. The reversal of 16244025 is 52044261.
It is not a de Polignac number, because 16244025 - 22 = 16244021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 16243986 and 16244004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16244021) 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 23 ways as a sum of consecutive naturals, for example, 14946 + ... + 15995.
It is an arithmetic number, because the mean of its divisors is an integer number (1278936).
Almost surely, 216244025 is an apocalyptic number.
16244025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
16244025 is a deficient number, since it is larger than the sum of its proper divisors (14450439).
16244025 is a wasteful number, since it uses less digits than its factorization.
16244025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30961 (or 30956 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 24.
The square root of 16244025 is about 4030.3876984727. The cubic root of 16244025 is about 253.2588029061.
Adding to 16244025 its reverse (52044261), we get a palindrome (68288286).
The spelling of 16244025 in words is "sixteen million, two hundred forty-four thousand, twenty-five".
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