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530357845 = 5106071569
BaseRepresentation
bin11111100111001…
…001111001010101
31100221221222012011
4133213021321111
52041232422340
6124343224221
716066652533
oct3747117125
91327858164
10530357845
11252411776
12129748071
1385b53c14
1450619153
15318630ea
hex1f9c9e55

530357845 has 4 divisors (see below), whose sum is σ = 636429420. Its totient is φ = 424286272.

The previous prime is 530357843. The next prime is 530357873. The reversal of 530357845 is 548753035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548753035 = 5109750607.

It can be written as a sum of positive squares in 2 ways, for example, as 347188689 + 183169156 = 18633^2 + 13534^2 .

It is a cyclic number.

It is not a de Polignac number, because 530357845 - 21 = 530357843 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 530357798 and 530357807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530357843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53035780 + ... + 53035789.

It is an arithmetic number, because the mean of its divisors is an integer number (159107355).

Almost surely, 2530357845 is an apocalyptic number.

It is an amenable number.

530357845 is a deficient number, since it is larger than the sum of its proper divisors (106071575).

530357845 is a wasteful number, since it uses less digits than its factorization.

530357845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106071574.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 530357845 is about 23029.4994517901. The cubic root of 530357845 is about 809.4493259611.

The spelling of 530357845 in words is "five hundred thirty million, three hundred fifty-seven thousand, eight hundred forty-five".

Divisors: 1 5 106071569 530357845