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530386 = 2265193
BaseRepresentation
bin10000001011111010010
3222221112221
42001133102
5113433021
615211254
74336213
oct2013722
9887487
10530386
1133253a
12216b2a
1315754c
14db40a
15a7241
hex817d2

530386 has 4 divisors (see below), whose sum is σ = 795582. Its totient is φ = 265192.

The previous prime is 530359. The next prime is 530389. The reversal of 530386 is 683035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683035 = 5136607.

It can be written as a sum of positive squares in only one way, i.e., 525625 + 4761 = 725^2 + 69^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 530386.

It is not an unprimeable number, because it can be changed into a prime (530389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132595 + ... + 132598.

2530386 is an apocalyptic number.

530386 is a deficient number, since it is larger than the sum of its proper divisors (265196).

530386 is a wasteful number, since it uses less digits than its factorization.

530386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265195.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 530386 is about 728.2760465648. The cubic root of 530386 is about 80.9463649399.

The spelling of 530386 in words is "five hundred thirty thousand, three hundred eighty-six".

Divisors: 1 2 265193 530386