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17420041 = 165710513
BaseRepresentation
bin100001001110…
…0111100001001
31012210000210201
41002130330021
513424420131
61421212201
7301032202
oct102347411
935700721
1017420041
119918a31
125a01061
1337bc022
1424565a9
1517e1761
hex109cf09

17420041 has 4 divisors (see below), whose sum is σ = 17432212. Its totient is φ = 17407872.

The previous prime is 17420021. The next prime is 17420057. The reversal of 17420041 is 14002471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14002471 = 72000353.

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 15832441 = 1260^2 + 3979^2 .

It is a cyclic number.

It is not a de Polignac number, because 17420041 - 211 = 17417993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17420021) 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, 3600 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (4358053).

Almost surely, 217420041 is an apocalyptic number.

It is an amenable number.

17420041 is a deficient number, since it is larger than the sum of its proper divisors (12171).

17420041 is a wasteful number, since it uses less digits than its factorization.

17420041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12170.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 17420041 is about 4173.7322626158. The cubic root of 17420041 is about 259.2286854859.

The spelling of 17420041 in words is "seventeen million, four hundred twenty thousand, forty-one".

Divisors: 1 1657 10513 17420041