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104005 = 5113161
BaseRepresentation
bin11001011001000101
312021200001
4121121011
511312010
62121301
7612136
oct313105
9167601
10104005
1171160
1250231
1338455
1429c8d
1520c3a
hex19645

104005 has 16 divisors (see below), whose sum is σ = 142848. Its totient is φ = 72000.

The previous prime is 104003. The next prime is 104009. The reversal of 104005 is 500401.

It is not a de Polignac number, because 104005 - 21 = 104003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103982 and 104000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675 + ... + 1735.

It is an arithmetic number, because the mean of its divisors is an integer number (8928).

2104005 is an apocalyptic number.

It is an amenable number.

104005 is a deficient number, since it is larger than the sum of its proper divisors (38843).

104005 is a wasteful number, since it uses less digits than its factorization.

104005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 104005 is about 322.4980620097. The cubic root of 104005 is about 47.0274473753.

Adding to 104005 its reverse (500401), we get a palindrome (604406).

The spelling of 104005 in words is "one hundred four thousand, five".

Divisors: 1 5 11 31 55 61 155 305 341 671 1705 1891 3355 9455 20801 104005