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530433661 = 8312750321
BaseRepresentation
bin11111100111011…
…100011001111101
31100222002211012011
4133213130121331
52041242334121
6124345011221
716100416552
oct3747343175
91328084164
10530433661
1125246372a
12129783b11
1385b7c594
1450638a29
153187a7e1
hex1f9dc67d

530433661 has 8 divisors (see below), whose sum is σ = 541062144. Its totient is φ = 519906240.

The previous prime is 530433647. The next prime is 530433689. The reversal of 530433661 is 166334035.

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 530433661 - 29 = 530433149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530433611) 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, 14620 + ... + 35701.

It is an arithmetic number, because the mean of its divisors is an integer number (67632768).

Almost surely, 2530433661 is an apocalyptic number.

It is an amenable number.

530433661 is a deficient number, since it is larger than the sum of its proper divisors (10628483).

530433661 is a wasteful number, since it uses less digits than its factorization.

530433661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50531.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 530433661 is about 23031.1454556650. The cubic root of 530433661 is about 809.4878950685.

Adding to 530433661 its reverse (166334035), we get a palindrome (696767696).

The spelling of 530433661 in words is "five hundred thirty million, four hundred thirty-three thousand, six hundred sixty-one".

Divisors: 1 83 127 10541 50321 4176643 6390767 530433661