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1630252341 = 321693106993
BaseRepresentation
bin110000100101011…
…1010110100110101
311012121121101210100
41201022322310311
511314321033331
6425433544313
755253626164
oct14112726465
94177541710
101630252341
11767264793
12395b75099
131cc998873
1411672b3db
15981c7ae6
hex612bad35

1630252341 has 12 divisors (see below), whose sum is σ = 2356221868. Its totient is φ = 1086182784.

The previous prime is 1630252333. The next prime is 1630252357. The reversal of 1630252341 is 1432520361.

1630252341 is a `hidden beast` number, since 1 + 630 + 2 + 5 + 23 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1286298225 + 343954116 = 35865^2 + 18546^2 .

It is not a de Polignac number, because 1630252341 - 23 = 1630252333 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 (1630252381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38260 + ... + 68733.

Almost surely, 21630252341 is an apocalyptic number.

It is an amenable number.

1630252341 is a deficient number, since it is larger than the sum of its proper divisors (725969527).

1630252341 is a wasteful number, since it uses less digits than its factorization.

1630252341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108692 (or 108689 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1630252341 is about 40376.3834561740. The cubic root of 1630252341 is about 1176.9326494485.

The spelling of 1630252341 in words is "one billion, six hundred thirty million, two hundred fifty-two thousand, three hundred forty-one".

Divisors: 1 3 9 1693 5079 15237 106993 320979 962937 181139149 543417447 1630252341