Search a number
-
+
22821303031 is a prime number
BaseRepresentation
bin10101010000010000…
…010111001011110111
32011220110022022102121
4111100100113023313
5333214223144111
614252311420411
71435350606112
oct252020271367
964813268377
1022821303031
11975103781a
12450a984707
1321c9053407
141166c93579
158d87b2871
hex5504172f7

22821303031 has 2 divisors, whose sum is σ = 22821303032. Its totient is φ = 22821303030.

The previous prime is 22821302993. The next prime is 22821303049. The reversal of 22821303031 is 13030312822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22821303031 - 227 = 22687085303 is a prime.

It is a super-2 number, since 2×228213030312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22821302987 and 22821303005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22821303061) 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, 11410651515 + 11410651516.

It is an arithmetic number, because the mean of its divisors is an integer number (11410651516).

Almost surely, 222821303031 is an apocalyptic number.

22821303031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22821303031 is an equidigital number, since it uses as much as digits as its factorization.

22821303031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 22821303031 its reverse (13030312822), we get a palindrome (35851615853).

The spelling of 22821303031 in words is "twenty-two billion, eight hundred twenty-one million, three hundred three thousand, thirty-one".