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13441321 = 31597349
BaseRepresentation
bin110011010001…
…100100101001
3221021220000201
4303101210221
511420110241
61200032201
7222151345
oct63214451
927256021
1013441321
117650733
124602661
132a2805a
141adc625
1512a7931
hexcd1929

13441321 has 8 divisors (see below), whose sum is σ = 14112000. Its totient is φ = 12785520.

The previous prime is 13441313. The next prime is 13441331. The reversal of 13441321 is 12314431.

13441321 = 4482 + 4492 + ... + 5062.

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 13441321 - 23 = 13441313 is a prime.

It is a super-2 number, since 2×134413212 = 361338220450082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13441331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846 + ... + 5503.

It is an arithmetic number, because the mean of its divisors is an integer number (1764000).

Almost surely, 213441321 is an apocalyptic number.

It is an amenable number.

13441321 is a deficient number, since it is larger than the sum of its proper divisors (670679).

13441321 is an equidigital number, since it uses as much as digits as its factorization.

13441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7439.

The product of its digits is 288, while the sum is 19.

The square root of 13441321 is about 3666.2407176834. The cubic root of 13441321 is about 237.7646674594.

Adding to 13441321 its reverse (12314431), we get a palindrome (25755752).

The spelling of 13441321 in words is "thirteen million, four hundred forty-one thousand, three hundred twenty-one".

Divisors: 1 31 59 1829 7349 227819 433591 13441321