Base | Representation |
---|---|
bin | 11001101011100… |
… | …01110000110101 |
3 | 120000100200020122 |
4 | 30311301300311 |
5 | 420122032203 |
6 | 33213141325 |
7 | 5224034315 |
oct | 1465616065 |
9 | 500320218 |
10 | 215424053 |
11 | 100668309 |
12 | 6018a845 |
13 | 35827970 |
14 | 20879445 |
15 | 13da4538 |
hex | cd71c35 |
215424053 has 16 divisors (see below), whose sum is σ = 240307200. Its totient is φ = 191773440.
The previous prime is 215424043. The next prime is 215424059. The reversal of 215424053 is 350424512.
It is a happy number.
It is not a de Polignac number, because 215424053 - 214 = 215407669 is a prime.
It is a super-2 number, since 2×2154240532 = 92815045221893618, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (215424059) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143933 + ... + 145421.
It is an arithmetic number, because the mean of its divisors is an integer number (15019200).
Almost surely, 2215424053 is an apocalyptic number.
It is an amenable number.
215424053 is a deficient number, since it is larger than the sum of its proper divisors (24883147).
215424053 is a wasteful number, since it uses less digits than its factorization.
215424053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1892.
The product of its (nonzero) digits is 4800, while the sum is 26.
The square root of 215424053 is about 14677.3312628693. The cubic root of 215424053 is about 599.4662410505.
Adding to 215424053 its reverse (350424512), we get a palindrome (565848565).
The spelling of 215424053 in words is "two hundred fifteen million, four hundred twenty-four thousand, fifty-three".
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