Search a number
-
+
2805883335869 is a prime number
BaseRepresentation
bin101000110101001011101…
…011011111010010111101
3100221020110211112000112012
4220311023223133102331
5331432422113221434
65545001025421005
7406501255556555
oct50651353372275
910836424460465
102805883335869
11991a71aa2929
1239397079a765
13174794380073
1499b3c336165
154cec2a603ce
hex28d4badf4bd

2805883335869 has 2 divisors, whose sum is σ = 2805883335870. Its totient is φ = 2805883335868.

The previous prime is 2805883335839. The next prime is 2805883335889. The reversal of 2805883335869 is 9685333885082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1740473332900 + 1065410002969 = 1319270^2 + 1032187^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805883335869 - 220 = 2805882287293 is a prime.

It is a super-2 number, since 2×28058833358692 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2805883335799 and 2805883335808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2805883335839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402941667934 + 1402941667935.

It is an arithmetic number, because the mean of its divisors is an integer number (1402941667935).

Almost surely, 22805883335869 is an apocalyptic number.

It is an amenable number.

2805883335869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805883335869 is an equidigital number, since it uses as much as digits as its factorization.

2805883335869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 298598400, while the sum is 68.

The spelling of 2805883335869 in words is "two trillion, eight hundred five billion, eight hundred eighty-three million, three hundred thirty-five thousand, eight hundred sixty-nine".