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17104427 = 19900233
BaseRepresentation
bin100000100111…
…1111000101011
31012011222212022
41001033320223
513334320202
61410335055
7265246064
oct101177053
935158768
1017104427
11972289a
12588a48b
13370b482
1423b356b
15177cea2
hex104fe2b

17104427 has 4 divisors (see below), whose sum is σ = 18004680. Its totient is φ = 16204176.

The previous prime is 17104393. The next prime is 17104429. The reversal of 17104427 is 72440171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72440171 = 316922859.

It is a cyclic number.

It is not a de Polignac number, because 17104427 - 224 = 327211 is a prime.

It is a super-2 number, since 2×171044272 = 585122845996658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17104396 and 17104405.

It is not an unprimeable number, because it can be changed into a prime (17104429) 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 3 ways as a sum of consecutive naturals, for example, 450098 + ... + 450135.

It is an arithmetic number, because the mean of its divisors is an integer number (4501170).

Almost surely, 217104427 is an apocalyptic number.

17104427 is a deficient number, since it is larger than the sum of its proper divisors (900253).

17104427 is an equidigital number, since it uses as much as digits as its factorization.

17104427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900252.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 17104427 is about 4135.7498715469. The cubic root of 17104427 is about 257.6535772832.

Adding to 17104427 its reverse (72440171), we get a palindrome (89544598).

The spelling of 17104427 in words is "seventeen million, one hundred four thousand, four hundred twenty-seven".

Divisors: 1 19 900233 17104427