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530803397 = 691768167
BaseRepresentation
bin11111101000110…
…110101011000101
31100222210121101002
4133220312223011
52041341202042
6124400543045
716103516525
oct3750665305
91328717332
10530803397
112526964a3
12129921a85
1385c7b967
14506d3685
1531900132
hex1fa36ac5

530803397 has 4 divisors (see below), whose sum is σ = 531572256. Its totient is φ = 530034540.

The previous prime is 530803391. The next prime is 530803409. The reversal of 530803397 is 793308035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 530803397 - 216 = 530737861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530803397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530803391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383393 + ... + 384774.

It is an arithmetic number, because the mean of its divisors is an integer number (132893064).

Almost surely, 2530803397 is an apocalyptic number.

It is an amenable number.

530803397 is a deficient number, since it is larger than the sum of its proper divisors (768859).

530803397 is an equidigital number, since it uses as much as digits as its factorization.

530803397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768858.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 530803397 is about 23039.1709269236. The cubic root of 530803397 is about 809.6759344811.

The spelling of 530803397 in words is "five hundred thirty million, eight hundred three thousand, three hundred ninety-seven".

Divisors: 1 691 768167 530803397