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104405144 = 2318172103
BaseRepresentation
bin1100011100100…
…01100010011000
321021110022221012
412032101202120
5203211431034
614205433052
72405300114
oct616214230
9237408835
10104405144
1153a30148
122ab6b788
13188268bc
14dc1a744
159274cce
hex6391898

104405144 has 16 divisors (see below), whose sum is σ = 196843920. Its totient is φ = 51913440.

The previous prime is 104405141. The next prime is 104405149. The reversal of 104405144 is 441504401.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104405141) 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, 34604 + ... + 37499.

It is an arithmetic number, because the mean of its divisors is an integer number (12302745).

Almost surely, 2104405144 is an apocalyptic number.

It is an amenable number.

104405144 is a deficient number, since it is larger than the sum of its proper divisors (92438776).

104405144 is a wasteful number, since it uses less digits than its factorization.

104405144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72290 (or 72286 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 104405144 is about 10217.8835381893. The cubic root of 104405144 is about 470.8768059963.

Adding to 104405144 its reverse (441504401), we get a palindrome (545909545).

The spelling of 104405144 in words is "one hundred four million, four hundred five thousand, one hundred forty-four".

Divisors: 1 2 4 8 181 362 724 1448 72103 144206 288412 576824 13050643 26101286 52202572 104405144