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13554241 = 31814261
BaseRepresentation
bin110011101101…
…001001000001
3221111121220221
4303231021001
511432213431
61202303041
7223131511
oct63551101
927447827
1013554241
117718558
124657a81
132a6757c
141b2b841
1512cb111
hexced241

13554241 has 4 divisors (see below), whose sum is σ = 13561684. Its totient is φ = 13546800.

The previous prime is 13554227. The next prime is 13554257. The reversal of 13554241 is 14245531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7403841 + 6150400 = 2721^2 + 2480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13554241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13554271) 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 3 ways as a sum of consecutive naturals, for example, 1051 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (3390421).

Almost surely, 213554241 is an apocalyptic number.

It is an amenable number.

13554241 is a deficient number, since it is larger than the sum of its proper divisors (7443).

13554241 is an equidigital number, since it uses as much as digits as its factorization.

13554241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442.

The product of its digits is 2400, while the sum is 25.

The square root of 13554241 is about 3681.6084799989. The cubic root of 13554241 is about 238.4286287650.

Adding to 13554241 its reverse (14245531), we get a palindrome (27799772).

The spelling of 13554241 in words is "thirteen million, five hundred fifty-four thousand, two hundred forty-one".

Divisors: 1 3181 4261 13554241