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530738 = 213137149
BaseRepresentation
bin10000001100100110010
3222222000222
42001210302
5113440423
615213042
74340225
oct2014462
9888028
10530738
1133282a
12217182
13157760
14db5bc
15a73c8
hex81932

530738 has 16 divisors (see below), whose sum is σ = 869400. Its totient is φ = 241536.

The previous prime is 530731. The next prime is 530741. The reversal of 530738 is 837035.

It can be written as a sum of positive squares in 4 ways, for example, as 277729 + 253009 = 527^2 + 503^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (530731) by changing a digit.

530738 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, 3488 + ... + 3636.

2530738 is an apocalyptic number.

530738 is a deficient number, since it is larger than the sum of its proper divisors (338662).

530738 is a wasteful number, since it uses less digits than its factorization.

530738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 530738 is about 728.5176730869. The cubic root of 530738 is about 80.9642681396.

The spelling of 530738 in words is "five hundred thirty thousand, seven hundred thirty-eight".

Divisors: 1 2 13 26 137 149 274 298 1781 1937 3562 3874 20413 40826 265369 530738