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13408841 = 53431587
BaseRepresentation
bin110011001001…
…101001001001
3221020020110202
4303021221021
511413040331
61155221545
7221654555
oct63115111
927206422
1013408841
117629296
1245a78b5
132a16334
141ad0865
15129cecb
hexcc9a49

13408841 has 8 divisors (see below), whose sum is σ = 13716864. Its totient is φ = 13102960.

The previous prime is 13408831. The next prime is 13408867. The reversal of 13408841 is 14880431.

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 13408841 - 222 = 9214537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13408831) 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, 22550 + ... + 23136.

It is an arithmetic number, because the mean of its divisors is an integer number (1714608).

Almost surely, 213408841 is an apocalyptic number.

It is an amenable number.

13408841 is a deficient number, since it is larger than the sum of its proper divisors (308023).

13408841 is an equidigital number, since it uses as much as digits as its factorization.

13408841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 13408841 is about 3661.8084330014. The cubic root of 13408841 is about 237.5729991670.

The spelling of 13408841 in words is "thirteen million, four hundred eight thousand, eight hundred forty-one".

Divisors: 1 53 431 587 22843 31111 252997 13408841