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514 = 2257
BaseRepresentation
bin1000000010
3201001
420002
54024
62214
71333
oct1002
9631
10514
11428
1236a
13307
1428a
15244
hex202

514 has 4 divisors (see below), whose sum is σ = 774. Its totient is φ = 256.

The previous prime is 509. The next prime is 521. The reversal of 514 is 415.

Subtracting from 514 its product of digits (20), we obtain a palindrome (494).

Adding to 514 its reverse (415), we get a palindrome (929).

Subtracting from 514 its reverse (415), we obtain a palindrome (99).

It can be divided in two parts, 51 and 4, that added together give a palindrome (55).

514 = T14 + T15 + ... + T17.

514 is nontrivially palindromic in base 4 and base 16.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 415 = 583.

It can be written as a sum of positive squares in only one way, i.e., 289 + 225 = 17^2 + 15^2 .

It is an iccanobiF number.

514 is an undulating number in base 16.

It is a plaindrome in base 7, base 12, base 14 and base 15.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 514.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

In principle, a polygon with 514 sides can be constructed with ruler and compass.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127 + ... + 130.

514 is the 19-th centered triangular number.

514 is a deficient number, since it is larger than the sum of its proper divisors (260).

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

514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259.

The product of its digits is 20, while the sum is 10.

The square root of 514 is about 22.6715680975. The cubic root of 514 is about 8.0104031327.

The spelling of 514 in words is "five hundred fourteen", and thus it is an aban number.

Divisors: 1 2 257 514