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57630303 = 3283179431
BaseRepresentation
bin1101101111010…
…1111001011111
311000102220220200
43123311321133
5104223132203
65415114543
71266564243
oct333657137
9130386820
1057630303
112a592555
1217372a53
13bc2a493
147922423
1550d59a3
hex36f5e5f

57630303 has 24 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 37657680.

The previous prime is 57630281. The next prime is 57630311. The reversal of 57630303 is 30303675.

It is not a de Polignac number, because 57630303 - 212 = 57626207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57630343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133498 + ... + 133928.

It is an arithmetic number, because the mean of its divisors is an integer number (3538080).

Almost surely, 257630303 is an apocalyptic number.

57630303 is a deficient number, since it is larger than the sum of its proper divisors (27283617).

57630303 is a wasteful number, since it uses less digits than its factorization.

57630303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

The square root of 57630303 is about 7591.4625073170. The cubic root of 57630303 is about 386.2634670266.

Adding to 57630303 its reverse (30303675), we get a palindrome (87933978).

The spelling of 57630303 in words is "fifty-seven million, six hundred thirty thousand, three hundred three".

Divisors: 1 3 9 83 179 249 431 537 747 1293 1611 3879 14857 35773 44571 77149 107319 133713 231447 321957 694341 6403367 19210101 57630303