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530770661 = 3738936877
BaseRepresentation
bin11111101000101…
…110101011100101
31100222201221110122
4133220232223211
52041334130121
6124400131325
716103322221
oct3750565345
91328657418
10530770661
11252673943
12129906b45
1385c69aa5
14506c5781
15318e55ab
hex1fa2eae5

530770661 has 8 divisors (see below), whose sum is σ = 546531960. Its totient is φ = 515083968.

The previous prime is 530770657. The next prime is 530770679. The reversal of 530770661 is 166077035.

It can be written as a sum of positive squares in 4 ways, for example, as 218152900 + 312617761 = 14770^2 + 17681^2 .

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 530770661 - 22 = 530770657 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 (530770601) 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, 4046 + ... + 32831.

It is an arithmetic number, because the mean of its divisors is an integer number (68316495).

Almost surely, 2530770661 is an apocalyptic number.

It is an amenable number.

530770661 is a deficient number, since it is larger than the sum of its proper divisors (15761299).

530770661 is a wasteful number, since it uses less digits than its factorization.

530770661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37303.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 530770661 is about 23038.4604737383. The cubic root of 530770661 is about 809.6592892119.

The spelling of 530770661 in words is "five hundred thirty million, seven hundred seventy thousand, six hundred sixty-one".

Divisors: 1 37 389 14393 36877 1364449 14345153 530770661