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2241302221 = 19871127983
BaseRepresentation
bin1000010110010111…
…1000111011001101
312210012101221122101
42011211320323031
514042233132341
61010222515101
7106353516544
oct20545707315
95705357571
102241302221
11a5017a594
12526735a91
13299462b42
1417394d15b
15d1b79831
hex85978ecd

2241302221 has 4 divisors (see below), whose sum is σ = 2242432192. Its totient is φ = 2240172252.

The previous prime is 2241302191. The next prime is 2241302243. The reversal of 2241302221 is 1222031422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2241302221 - 27 = 2241302093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2241302281) 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 in 3 ways as a sum of consecutive naturals, for example, 562005 + ... + 565978.

It is an arithmetic number, because the mean of its divisors is an integer number (560608048).

Almost surely, 22241302221 is an apocalyptic number.

It is an amenable number.

2241302221 is a deficient number, since it is larger than the sum of its proper divisors (1129971).

2241302221 is a wasteful number, since it uses less digits than its factorization.

2241302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129970.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2241302221 is about 47342.3934861768. The cubic root of 2241302221 is about 1308.6800256267.

Adding to 2241302221 its reverse (1222031422), we get a palindrome (3463333643).

The spelling of 2241302221 in words is "two billion, two hundred forty-one million, three hundred two thousand, two hundred twenty-one".

Divisors: 1 1987 1127983 2241302221