[go: up one dir, main page]

Search a number
-
+
2551082321 is a prime number
BaseRepresentation
bin1001100000001110…
…0110110101010001
320120210022102001102
42120003212311101
520211034113241
61101050314145
7120134561534
oct23003466521
96523272042
102551082321
11109a0239a7
125b2428955
133186a6388
141a2b4aa1b
15ede6b39b
hex980e6d51

2551082321 has 2 divisors, whose sum is σ = 2551082322. Its totient is φ = 2551082320.

The previous prime is 2551082269. The next prime is 2551082323. The reversal of 2551082321 is 1232801552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1706598721 + 844483600 = 41311^2 + 29060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2551082321 is a prime.

Together with 2551082323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2551082323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275541160 + 1275541161.

It is an arithmetic number, because the mean of its divisors is an integer number (1275541161).

Almost surely, 22551082321 is an apocalyptic number.

It is an amenable number.

2551082321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551082321 is an equidigital number, since it uses as much as digits as its factorization.

2551082321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2551082321 is about 50508.2401297056. The cubic root of 2551082321 is about 1366.3904701095.

Adding to 2551082321 its reverse (1232801552), we get a palindrome (3783883873).

The spelling of 2551082321 in words is "two billion, five hundred fifty-one million, eighty-two thousand, three hundred twenty-one".