Search a number
-
+
52028839 = 431209973
BaseRepresentation
bin1100011001111…
…0010110100111
310121220100011001
43012132112213
5101304410324
65055054131
71201144402
oct306362647
9117810131
1052028839
1127407045
1215511347
13aa189c5
146ca4d39
15487ae44
hex319e5a7

52028839 has 4 divisors (see below), whose sum is σ = 53238856. Its totient is φ = 50818824.

The previous prime is 52028803. The next prime is 52028849. The reversal of 52028839 is 93882025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52028839 - 215 = 51996071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52028798 and 52028807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52028849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604944 + ... + 605029.

It is an arithmetic number, because the mean of its divisors is an integer number (13309714).

Almost surely, 252028839 is an apocalyptic number.

52028839 is a deficient number, since it is larger than the sum of its proper divisors (1210017).

52028839 is a wasteful number, since it uses less digits than its factorization.

52028839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210016.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 52028839 is about 7213.1018986286. The cubic root of 52028839 is about 373.3201041408.

It can be divided in two parts, 5202 and 8839, that added together give a palindrome (14041).

The spelling of 52028839 in words is "fifty-two million, twenty-eight thousand, eight hundred thirty-nine".

Divisors: 1 43 1209973 52028839