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500013213 = 3747506599
BaseRepresentation
bin11101110011011…
…001100010011101
31021211212022011220
4131303121202131
52011000410323
6121341003553
715251020320
oct3563314235
91254768156
10500013213
11237276367
1211b5535b9
137c78b10b
144a59a7b7
152dd6c0e3
hex1dcd989d

500013213 has 16 divisors (see below), whose sum is σ = 778137600. Its totient is φ = 279642096.

The previous prime is 500013211. The next prime is 500013221. The reversal of 500013213 is 312310005.

It is a happy number.

It is not a de Polignac number, because 500013213 - 21 = 500013211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 500013192 and 500013201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500013211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252313 + ... + 254286.

It is an arithmetic number, because the mean of its divisors is an integer number (48633600).

Almost surely, 2500013213 is an apocalyptic number.

It is an amenable number.

500013213 is a deficient number, since it is larger than the sum of its proper divisors (278124387).

500013213 is a wasteful number, since it uses less digits than its factorization.

500013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506656.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 500013213 is about 22360.9752247079. The cubic root of 500013213 is about 793.7075173659.

Adding to 500013213 its reverse (312310005), we get a palindrome (812323218).

The spelling of 500013213 in words is "five hundred million, thirteen thousand, two hundred thirteen".

Divisors: 1 3 7 21 47 141 329 987 506599 1519797 3546193 10638579 23810153 71430459 166671071 500013213