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13553441 = 111964849
BaseRepresentation
bin110011101100…
…111100100001
3221111120211022
4303230330201
511432202231
61202255225
7223126256
oct63547441
927446738
1013553441
1177179a0
124657515
132a670b5
141b2b42d
1512cac7b
hexcecf21

13553441 has 8 divisors (see below), whose sum is σ = 15564000. Its totient is φ = 11672640.

The previous prime is 13553431. The next prime is 13553447. The reversal of 13553441 is 14435531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13553441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13553441.

It is not an unprimeable number, because it can be changed into a prime (13553447) 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 7 ways as a sum of consecutive naturals, for example, 32216 + ... + 32633.

It is an arithmetic number, because the mean of its divisors is an integer number (1945500).

Almost surely, 213553441 is an apocalyptic number.

13553441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13553441 is a deficient number, since it is larger than the sum of its proper divisors (2010559).

13553441 is a wasteful number, since it uses less digits than its factorization.

13553441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64879.

The product of its digits is 3600, while the sum is 26.

The square root of 13553441 is about 3681.4998302322. The cubic root of 13553441 is about 238.4239378186.

Adding to 13553441 its reverse (14435531), we get a palindrome (27988972).

The spelling of 13553441 in words is "thirteen million, five hundred fifty-three thousand, four hundred forty-one".

Divisors: 1 11 19 209 64849 713339 1232131 13553441