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1222405341 = 3407468447
BaseRepresentation
bin100100011011100…
…0110110011011101
310011012011121212220
41020313012303131
510000413432331
6321144215553
742202162653
oct11067066335
93135147786
101222405341
1157801a253
122a146a5b9
1316633a691
14b84c2dd3
15724b4296
hex48dc6cdd

1222405341 has 4 divisors (see below), whose sum is σ = 1629873792. Its totient is φ = 814936892.

The previous prime is 1222405313. The next prime is 1222405351. The reversal of 1222405341 is 1435042221.

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 1222405341 - 25 = 1222405309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222405351) 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, 203734221 + ... + 203734226.

It is an arithmetic number, because the mean of its divisors is an integer number (407468448).

Almost surely, 21222405341 is an apocalyptic number.

It is an amenable number.

1222405341 is a deficient number, since it is larger than the sum of its proper divisors (407468451).

1222405341 is an equidigital number, since it uses as much as digits as its factorization.

1222405341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407468450.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1222405341 is about 34962.9137944766. The cubic root of 1222405341 is about 1069.2315036745.

Adding to 1222405341 its reverse (1435042221), we get a palindrome (2657447562).

The spelling of 1222405341 in words is "one billion, two hundred twenty-two million, four hundred five thousand, three hundred forty-one".

Divisors: 1 3 407468447 1222405341