Search a number
502 = 2251
BaseRepresentation
bin111110110
3200121
413312
54002
62154
71315
oct766
9617
10502
11417
1235a
132c8
1427c
15237
hex1f6

502 has 4 divisors (see below), whose sum is σ = 756. Its totient is φ = 250.

The previous prime is 499. The next prime is 503. The reversal of 502 is 205.

Adding to 502 its product of nonzero digits (10), we get a 9-th power (512 = 29).

Adding to 502 its reverse (205), we get a palindrome (707).

It can be divided in two parts, 50 and 2, that multiplied together give a square (100 = 102).

502 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 205 = 541.

It is a sliding number, since 502 = 2 + 500 and 1/2 + 1/500 = 0.502.

It is an Ulam number.

It is a plaindrome in base 12, base 14 and base 15.

It is a nialpdrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503) 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 as a sum of consecutive naturals, namely, 124 + ... + 127.

It is equal to the Eulerian number A(9, 1).

It is an arithmetic number, because the mean of its divisors is an integer number (189).

502 is a deficient number, since it is larger than the sum of its proper divisors (254).

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

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

The sum of its prime factors is 253.

The product of its (nonzero) digits is 10, while the sum is 7.

The square root of 502 is about 22.4053565024. The cubic root of 502 is about 7.9475738546.

The spelling of 502 in words is "five hundred two", and thus it is an aban number.

Divisors: 1 2 251 502