Base | Representation |
---|---|
bin | 101011011001101… |
… | …010100001010011 |
3 | 1212202010202100100 |
4 | 223121222201103 |
5 | 2442401214201 |
6 | 200130423443 |
7 | 24021104421 |
oct | 5331524123 |
9 | 1782122310 |
10 | 728148051 |
11 | 344025454 |
12 | 183a31b83 |
13 | b7b16447 |
14 | 6c9c4111 |
15 | 43dd2886 |
hex | 2b66a853 |
728148051 has 12 divisors (see below), whose sum is σ = 1057110912. Its totient is φ = 482966736.
The previous prime is 728148041. The next prime is 728148059. The reversal of 728148051 is 150841827.
728148051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 728148051 - 219 = 727623763 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 728147997 and 728148015.
It is not an unprimeable number, because it can be changed into a prime (728148059) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203571 + ... + 207116.
It is an arithmetic number, because the mean of its divisors is an integer number (88092576).
Almost surely, 2728148051 is an apocalyptic number.
728148051 is a deficient number, since it is larger than the sum of its proper divisors (328962861).
728148051 is a wasteful number, since it uses less digits than its factorization.
728148051 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 410890 (or 410887 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 36.
The square root of 728148051 is about 26984.2185545552. The cubic root of 728148051 is about 899.6492670397.
Adding to 728148051 its reverse (150841827), we get a palindrome (878989878).
The spelling of 728148051 in words is "seven hundred twenty-eight million, one hundred forty-eight thousand, fifty-one".
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