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1306425425 = 5252257017
BaseRepresentation
bin100110111011110…
…0111100001010001
310101001021021202212
41031313213201101
510133421103200
6333345121505
744242301324
oct11567474121
93331237685
101306425425
11610496838
12305629295
1317a8777c6
14c57147bb
1579a5e035
hex4dde7851

1306425425 has 6 divisors (see below), whose sum is σ = 1619967558. Its totient is φ = 1045140320.

The previous prime is 1306425409. The next prime is 1306425473. The reversal of 1306425425 is 5245246031.

It can be written as a sum of positive squares in 3 ways, for example, as 172554496 + 1133870929 = 13136^2 + 33673^2 .

It is not a de Polignac number, because 1306425425 - 24 = 1306425409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1306425391 and 1306425400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26128484 + ... + 26128533.

It is an arithmetic number, because the mean of its divisors is an integer number (269994593).

Almost surely, 21306425425 is an apocalyptic number.

It is an amenable number.

1306425425 is a deficient number, since it is larger than the sum of its proper divisors (313542133).

1306425425 is an equidigital number, since it uses as much as digits as its factorization.

1306425425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52257027 (or 52257022 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1306425425 is about 36144.5075357239. The cubic root of 1306425425 is about 1093.1880474354.

The spelling of 1306425425 in words is "one billion, three hundred six million, four hundred twenty-five thousand, four hundred twenty-five".

Divisors: 1 5 25 52257017 261285085 1306425425