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530206345 = 5711493539
BaseRepresentation
bin11111100110100…
…100111010001001
31100221200021101001
4133212210322021
52041213100340
6124340055001
716065452044
oct3746447211
91327607331
10530206345
11252318969
12129694461
1385accc86
14505b9c5b
153183329a
hex1f9a4e89

530206345 has 8 divisors (see below), whose sum is σ = 645209280. Its totient is φ = 418190640.

The previous prime is 530206289. The next prime is 530206349. The reversal of 530206345 is 543602035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 530206345 - 225 = 496651913 is a prime.

It is a super-2 number, since 2×5302063452 = 562237536556518050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (530206349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746415 + ... + 747124.

It is an arithmetic number, because the mean of its divisors is an integer number (80651160).

Almost surely, 2530206345 is an apocalyptic number.

It is an amenable number.

530206345 is a deficient number, since it is larger than the sum of its proper divisors (115002935).

530206345 is a wasteful number, since it uses less digits than its factorization.

530206345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493615.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 530206345 is about 23026.2099573508. The cubic root of 530206345 is about 809.3722438848.

The spelling of 530206345 in words is "five hundred thirty million, two hundred six thousand, three hundred forty-five".

Divisors: 1 5 71 355 1493539 7467695 106041269 530206345