Search a number
-
+
2215220141 is a prime number
BaseRepresentation
bin1000010000001001…
…1001001110101101
312201101022211202102
42010002121032231
514014044021031
61003451504445
7105616026521
oct20402311655
95641284672
102215220141
11a37485752
12519a58125
13293c30264
141702bdd81
15ce7267cb
hex840993ad

2215220141 has 2 divisors, whose sum is σ = 2215220142. Its totient is φ = 2215220140.

The previous prime is 2215220053. The next prime is 2215220167. The reversal of 2215220141 is 1410225122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1585712041 + 629508100 = 39821^2 + 25090^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215220141 - 222 = 2211025837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215220191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107610070 + 1107610071.

It is an arithmetic number, because the mean of its divisors is an integer number (1107610071).

Almost surely, 22215220141 is an apocalyptic number.

It is an amenable number.

2215220141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215220141 is an equidigital number, since it uses as much as digits as its factorization.

2215220141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2215220141 is about 47066.1251963660. The cubic root of 2215220141 is about 1303.5838272349.

Adding to 2215220141 its reverse (1410225122), we get a palindrome (3625445263).

The spelling of 2215220141 in words is "two billion, two hundred fifteen million, two hundred twenty thousand, one hundred forty-one".