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13241405 = 58331907
BaseRepresentation
bin110010100000…
…110000111101
3220220201210102
4302200300331
511342211110
61151450445
7220356452
oct62406075
926821712
1013241405
117524511
124526a25
132988068
141a89829
1512685a5
hexca0c3d

13241405 has 8 divisors (see below), whose sum is σ = 16081632. Its totient is φ = 10465168.

The previous prime is 13241387. The next prime is 13241471. The reversal of 13241405 is 50414231.

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-13241405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 15539 + ... + 16368.

It is an arithmetic number, because the mean of its divisors is an integer number (2010204).

Almost surely, 213241405 is an apocalyptic number.

It is an amenable number.

13241405 is a deficient number, since it is larger than the sum of its proper divisors (2840227).

13241405 is an equidigital number, since it uses as much as digits as its factorization.

13241405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31995.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13241405 is about 3638.8741390710. The cubic root of 13241405 is about 236.5799975802.

Adding to 13241405 its reverse (50414231), we get a palindrome (63655636).

The spelling of 13241405 in words is "thirteen million, two hundred forty-one thousand, four hundred five".

Divisors: 1 5 83 415 31907 159535 2648281 13241405