Base | Representation |
---|---|
bin | 1100100110110… |
… | …0001101001101 |
3 | 10200111011202201 |
4 | 3021230031031 |
5 | 102013401023 |
6 | 5125121501 |
7 | 1211255545 |
oct | 311541515 |
9 | 120434681 |
10 | 52872013 |
11 | 27932587 |
12 | 15859291 |
13 | ac5271c |
14 | 7044325 |
15 | 4995bad |
hex | 326c34d |
52872013 has 4 divisors (see below), whose sum is σ = 52892320. Its totient is φ = 52851708.
The previous prime is 52872011. The next prime is 52872059. The reversal of 52872013 is 31027825.
52872013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 52872013 - 21 = 52872011 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (52872011) 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 3 ways as a sum of consecutive naturals, for example, 5553 + ... + 11686.
It is an arithmetic number, because the mean of its divisors is an integer number (13223080).
Almost surely, 252872013 is an apocalyptic number.
It is an amenable number.
52872013 is a deficient number, since it is larger than the sum of its proper divisors (20307).
52872013 is a wasteful number, since it uses less digits than its factorization.
52872013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20306.
The product of its (nonzero) digits is 3360, while the sum is 28.
The square root of 52872013 is about 7271.3143928729. The cubic root of 52872013 is about 375.3259696051.
Adding to 52872013 its reverse (31027825), we get a palindrome (83899838).
The spelling of 52872013 in words is "fifty-two million, eight hundred seventy-two thousand, thirteen".
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