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530490 = 23517683
BaseRepresentation
bin10000001100000111010
3222221200210
42001200322
5113433430
615211550
74336422
oct2014072
9887623
10530490
11332624
12216bb6
131575cc
14db482
15a72b0
hex8183a

530490 has 16 divisors (see below), whose sum is σ = 1273248. Its totient is φ = 141456.

The previous prime is 530447. The next prime is 530501. The reversal of 530490 is 94035.

It is a Curzon number.

It is an unprimeable number.

530490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8812 + ... + 8871.

It is an arithmetic number, because the mean of its divisors is an integer number (79578).

2530490 is an apocalyptic number.

530490 is an abundant number, since it is smaller than the sum of its proper divisors (742758).

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

530490 is a wasteful number, since it uses less digits than its factorization.

530490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17693.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 530490 is about 728.3474445620. The cubic root of 530490 is about 80.9516553458.

The spelling of 530490 in words is "five hundred thirty thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 17683 35366 53049 88415 106098 176830 265245 530490