Search a number
-
+
2580704869 is a prime number
BaseRepresentation
bin1001100111010010…
…0110111001100101
320122212001101112211
42121310212321211
520241130023434
61104025243421
7120644425621
oct23164467145
96585041484
102580704869
111104816846
12600333571
13321878602
141a6a5c181
1510186d464
hex99d26e65

2580704869 has 2 divisors, whose sum is σ = 2580704870. Its totient is φ = 2580704868.

The previous prime is 2580704831. The next prime is 2580704881. The reversal of 2580704869 is 9684070852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2037348769 + 543356100 = 45137^2 + 23310^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580704869 - 211 = 2580702821 is a prime.

It is a super-2 number, since 2×25807048692 = 13320075241760614322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2580704569) by changing a digit.

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 as a sum of consecutive naturals, namely, 1290352434 + 1290352435.

It is an arithmetic number, because the mean of its divisors is an integer number (1290352435).

Almost surely, 22580704869 is an apocalyptic number.

It is an amenable number.

2580704869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580704869 is an equidigital number, since it uses as much as digits as its factorization.

2580704869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 2580704869 is about 50800.6384703972. The cubic root of 2580704869 is about 1371.6588620316.

The spelling of 2580704869 in words is "two billion, five hundred eighty million, seven hundred four thousand, eight hundred sixty-nine".