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530550813 = 313194316651
BaseRepresentation
bin11111100111111…
…001000000011101
31100222022202220010
4133213321000131
52041310111223
6124351313433
716101415242
oct3747710035
91328282803
10530550813
11252533751
1212981b879
1385bc09c0
14506695c9
15318a0393
hex1f9f901d

530550813 has 32 divisors (see below), whose sum is σ = 820610560. Its totient is φ = 302097600.

The previous prime is 530550803. The next prime is 530550859. The reversal of 530550813 is 318055035.

It is not a de Polignac number, because 530550813 - 25 = 530550781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530550803) 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 31 ways as a sum of consecutive naturals, for example, 23538 + ... + 40188.

It is an arithmetic number, because the mean of its divisors is an integer number (25644080).

Almost surely, 2530550813 is an apocalyptic number.

It is an amenable number.

530550813 is a deficient number, since it is larger than the sum of its proper divisors (290059747).

530550813 is a wasteful number, since it uses less digits than its factorization.

530550813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16729.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 530550813 is about 23033.6886537958. The cubic root of 530550813 is about 809.5474853949.

The spelling of 530550813 in words is "five hundred thirty million, five hundred fifty thousand, eight hundred thirteen".

Divisors: 1 3 13 19 39 43 57 129 247 559 741 817 1677 2451 10621 16651 31863 49953 216463 316369 649389 715993 949107 2147979 4112797 9307909 12338391 13603867 27923727 40811601 176850271 530550813