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530185500 = 223453131953
BaseRepresentation
bin11111100110011…
…111110100011100
31100221122012210000
4133212133310130
52041211414000
6124335414300
716065334215
oct3746376434
91327565700
10530185500
11252304239
12129684390
1385ac3640
14505b240c
153182c000
hex1f99fd1c

530185500 has 480 divisors, whose sum is σ = 1997835840. Its totient is φ = 121305600.

The previous prime is 530185493. The next prime is 530185517. The reversal of 530185500 is 5581035.

530185500 is a `hidden beast` number, since 530 + 1 + 85 + 50 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 159 ways as a sum of consecutive naturals, for example, 10003474 + ... + 10003526.

It is an arithmetic number, because the mean of its divisors is an integer number (4162158).

Almost surely, 2530185500 is an apocalyptic number.

530185500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530185500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998917920).

530185500 is an abundant number, since it is smaller than the sum of its proper divisors (1467650340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530185500 is a wasteful number, since it uses less digits than its factorization.

530185500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 530185500 is about 23025.7573165358. The cubic root of 530185500 is about 809.3616369543.

The spelling of 530185500 in words is "five hundred thirty million, one hundred eighty-five thousand, five hundred".