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530644897 = 4313998821
BaseRepresentation
bin11111101000001…
…111111110100001
31100222111112221201
4133220033332201
52041321114042
6124353321201
716102256446
oct3750177641
91328445851
10530644897
11252598402
12129866201
1385c24783
14506919cd
15318bd1b7
hex1fa0ffa1

530644897 has 8 divisors (see below), whose sum is σ = 543435200. Its totient is φ = 517875120.

The previous prime is 530644883. The next prime is 530644903. The reversal of 530644897 is 798446035.

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

It is a cyclic number.

It is not a de Polignac number, because 530644897 - 215 = 530612129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530644867) 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, 55747 + ... + 64567.

It is an arithmetic number, because the mean of its divisors is an integer number (67929400).

Almost surely, 2530644897 is an apocalyptic number.

It is an amenable number.

530644897 is a deficient number, since it is larger than the sum of its proper divisors (12790303).

530644897 is a wasteful number, since it uses less digits than its factorization.

530644897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10263.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 530644897 is about 23035.7308761845. The cubic root of 530644897 is about 809.5953356429.

The spelling of 530644897 in words is "five hundred thirty million, six hundred forty-four thousand, eight hundred ninety-seven".

Divisors: 1 43 1399 8821 60157 379303 12340579 530644897