Search a number
-
+
51230 = 2547109
BaseRepresentation
bin1100100000011110
32121021102
430200132
53114410
61033102
7302234
oct144036
977242
1051230
1135543
1225792
131a41a
1414954
15102a5
hexc81e

51230 has 16 divisors (see below), whose sum is σ = 95040. Its totient is φ = 19872.

The previous prime is 51229. The next prime is 51239. The reversal of 51230 is 3215.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 524.

It is an arithmetic number, because the mean of its divisors is an integer number (5940).

251230 is an apocalyptic number.

51230 is a deficient number, since it is larger than the sum of its proper divisors (43810).

51230 is a wasteful number, since it uses less digits than its factorization.

51230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 51230 is about 226.3404515326. The cubic root of 51230 is about 37.1399617354.

Adding to 51230 its reverse (3215), we get a palindrome (54445).

The spelling of 51230 in words is "fifty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 47 94 109 218 235 470 545 1090 5123 10246 25615 51230