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506215 = 5137739
BaseRepresentation
bin1111011100101100111
3221201101201
41323211213
5112144330
614503331
74205563
oct1734547
9851351
10506215
11316366
12204b47
13149548
14d26a3
159eeca
hex7b967

506215 has 8 divisors (see below), whose sum is σ = 612720. Its totient is φ = 401472.

The previous prime is 506213. The next prime is 506251. The reversal of 506215 is 512605.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 506215 - 21 = 506213 is a prime.

506215 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 506192 and 506201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506213) 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 7 ways as a sum of consecutive naturals, for example, 316 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (76590).

2506215 is an apocalyptic number.

506215 is a deficient number, since it is larger than the sum of its proper divisors (106505).

506215 is a wasteful number, since it uses less digits than its factorization.

506215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 506215 is about 711.4878776199. The cubic root of 506215 is about 79.6975559525.

The spelling of 506215 in words is "five hundred six thousand, two hundred fifteen".

Divisors: 1 5 137 685 739 3695 101243 506215