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515313230 = 2551531323
BaseRepresentation
bin11110101101110…
…000111001001110
31022220122121212012
4132231300321032
52023410010410
6123044541222
715525042635
oct3655607116
91286577765
10515313230
11244976503
121246b1812
13829b7193
144c62051c
1530390605
hex1eb70e4e

515313230 has 8 divisors (see below), whose sum is σ = 927563832. Its totient is φ = 206125288.

The previous prime is 515313221. The next prime is 515313233. The reversal of 515313230 is 32313515.

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

It is a junction number, because it is equal to n+sod(n) for n = 515313196 and 515313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515313233) 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 3 ways as a sum of consecutive naturals, for example, 25765652 + ... + 25765671.

It is an arithmetic number, because the mean of its divisors is an integer number (115945479).

Almost surely, 2515313230 is an apocalyptic number.

515313230 is a deficient number, since it is larger than the sum of its proper divisors (412250602).

515313230 is a wasteful number, since it uses less digits than its factorization.

515313230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51531330.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 515313230 is about 22700.5116682422. The cubic root of 515313230 is about 801.7219316550.

Adding to 515313230 its reverse (32313515), we get a palindrome (547626745).

The spelling of 515313230 in words is "five hundred fifteen million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 51531323 103062646 257656615 515313230