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530280997 is a prime number
BaseRepresentation
bin11111100110110…
…111001000100101
31100221211001202221
4133212313020211
52041222442442
6124341432341
716066212511
oct3746671045
91327731687
10530280997
11252369a64
1212970b6b1
1385b27c4c
14505d9141
153184a467
hex1f9b7225

530280997 has 2 divisors, whose sum is σ = 530280998. Its totient is φ = 530280996.

The previous prime is 530280913. The next prime is 530281019. The reversal of 530280997 is 799082035.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436559236 + 93721761 = 20894^2 + 9681^2 .

It is a cyclic number.

It is not a de Polignac number, because 530280997 - 219 = 529756709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530280197) 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 as a sum of consecutive naturals, namely, 265140498 + 265140499.

It is an arithmetic number, because the mean of its divisors is an integer number (265140499).

Almost surely, 2530280997 is an apocalyptic number.

It is an amenable number.

530280997 is a deficient number, since it is larger than the sum of its proper divisors (1).

530280997 is an equidigital number, since it uses as much as digits as its factorization.

530280997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 530280997 is about 23027.8309226032. The cubic root of 530280997 is about 809.4102281035.

The spelling of 530280997 in words is "five hundred thirty million, two hundred eighty thousand, nine hundred ninety-seven".