Search a number
-
+
52250513 = 721956123
BaseRepresentation
bin1100011101010…
…0011110010001
310122022121020012
43013110132101
5101334004023
65103524305
71203056600
oct307243621
9118277205
1052250513
1127548647
12155b9695
13aa95883
146d21a37
1548c1978
hex31d4791

52250513 has 12 divisors (see below), whose sum is σ = 63981360. Its totient is φ = 42428232.

The previous prime is 52250491. The next prime is 52250519. The reversal of 52250513 is 31505225.

52250513 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 52250513 - 212 = 52246417 is a prime.

It is a super-2 number, since 2×522505132 = 5460232217526338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52250519) 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 11 ways as a sum of consecutive naturals, for example, 27131 + ... + 28992.

It is an arithmetic number, because the mean of its divisors is an integer number (5331780).

Almost surely, 252250513 is an apocalyptic number.

It is an amenable number.

52250513 is a deficient number, since it is larger than the sum of its proper divisors (11730847).

52250513 is a wasteful number, since it uses less digits than its factorization.

52250513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56156 (or 56149 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 52250513 is about 7228.4516322654. The cubic root of 52250513 is about 373.8495419848.

Adding to 52250513 its reverse (31505225), we get a palindrome (83755738).

The spelling of 52250513 in words is "fifty-two million, two hundred fifty thousand, five hundred thirteen".

Divisors: 1 7 19 49 133 931 56123 392861 1066337 2750027 7464359 52250513