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1320232321 = 5922376819
BaseRepresentation
bin100111010110001…
…0010010110000001
310102000020202021101
41032230102112001
510200434413241
6335001054401
744500534552
oct11654222601
93360222241
101320232321
116182670a1
1230a187401
131806a0075
14c74aa329
157ad89e31
hex4eb12581

1320232321 has 4 divisors (see below), whose sum is σ = 1342609200. Its totient is φ = 1297855444.

The previous prime is 1320232313. The next prime is 1320232343. The reversal of 1320232321 is 1232320231.

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 1320232321 - 23 = 1320232313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320232391) 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 in 3 ways as a sum of consecutive naturals, for example, 11188351 + ... + 11188468.

It is an arithmetic number, because the mean of its divisors is an integer number (335652300).

Almost surely, 21320232321 is an apocalyptic number.

It is an amenable number.

1320232321 is a deficient number, since it is larger than the sum of its proper divisors (22376879).

1320232321 is an equidigital number, since it uses as much as digits as its factorization.

1320232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22376878.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1320232321 is about 36335.0013210403. The cubic root of 1320232321 is about 1097.0256620519.

Adding to 1320232321 its reverse (1232320231), we get a palindrome (2552552552).

The spelling of 1320232321 in words is "one billion, three hundred twenty million, two hundred thirty-two thousand, three hundred twenty-one".

Divisors: 1 59 22376819 1320232321