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506530 = 25373
BaseRepresentation
bin1111011101010100010
3221201211101
41323222202
5112202110
614505014
74206523
oct1735242
9851741
10506530
11316622
1220516a
1314972b
14d284a
15a013a
hex7baa2

506530 has 16 divisors (see below), whose sum is σ = 937080. Its totient is φ = 197136.

The previous prime is 506507. The next prime is 506531. The reversal of 506530 is 35605.

It can be written as a sum of positive squares in 4 ways, for example, as 491401 + 15129 = 701^2 + 123^2 .

It is a junction number, because it is equal to n+sod(n) for n = 506498 and 506507.

It is not an unprimeable number, because it can be changed into a prime (506531) by changing a digit.

506530 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13672 + ... + 13708.

2506530 is an apocalyptic number.

506530 is a deficient number, since it is larger than the sum of its proper divisors (430550).

506530 is an frugal number, since it uses more digits than its factorization.

506530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 506530 is about 711.7092102818. The cubic root of 506530 is about 79.7140835312.

The spelling of 506530 in words is "five hundred six thousand, five hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 1369 2738 6845 13690 50653 101306 253265 506530