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1323422221 = 11294148659
BaseRepresentation
bin100111011100001…
…1101001000001101
310102020020210222211
41032320131020031
510202244002341
6335153310421
744536621552
oct11670351015
93366223884
101323422221
1161a045780
1230b265411
13181248c94
14c7a9aa29
157b2ba181
hex4ee1d20d

1323422221 has 8 divisors (see below), whose sum is σ = 1493517600. Its totient is φ = 1161624240.

The previous prime is 1323422207. The next prime is 1323422227. The reversal of 1323422221 is 1222243231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1323422221 - 211 = 1323420173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323422192 and 1323422201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323422227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2074011 + ... + 2074648.

It is an arithmetic number, because the mean of its divisors is an integer number (186689700).

Almost surely, 21323422221 is an apocalyptic number.

1323422221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1323422221 is a deficient number, since it is larger than the sum of its proper divisors (170095379).

1323422221 is a wasteful number, since it uses less digits than its factorization.

1323422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148699.

The product of its digits is 1152, while the sum is 22.

The square root of 1323422221 is about 36378.8705294708. The cubic root of 1323422221 is about 1097.9084833308.

Adding to 1323422221 its reverse (1222243231), we get a palindrome (2545665452).

The spelling of 1323422221 in words is "one billion, three hundred twenty-three million, four hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 11 29 319 4148659 45635249 120311111 1323422221