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104240155 = 561341771
BaseRepresentation
bin1100011011010…
…01010000011011
321021010221121111
412031221100123
5203141141110
614202121151
72404012105
oct615512033
9237127544
10104240155
1153928198
122aab01b7
1318799786
14dbb6575
159240e8a
hex636941b

104240155 has 8 divisors (see below), whose sum is σ = 127139184. Its totient is φ = 82024800.

The previous prime is 104240153. The next prime is 104240159. The reversal of 104240155 is 551042401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104240155 - 21 = 104240153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104240153) 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 7 ways as a sum of consecutive naturals, for example, 170581 + ... + 171190.

It is an arithmetic number, because the mean of its divisors is an integer number (15892398).

Almost surely, 2104240155 is an apocalyptic number.

104240155 is a deficient number, since it is larger than the sum of its proper divisors (22899029).

104240155 is an equidigital number, since it uses as much as digits as its factorization.

104240155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341837.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 104240155 is about 10209.8068052241. The cubic root of 104240155 is about 470.6286367014.

Adding to 104240155 its reverse (551042401), we get a palindrome (655282556).

The spelling of 104240155 in words is "one hundred four million, two hundred forty thousand, one hundred fifty-five".

Divisors: 1 5 61 305 341771 1708855 20848031 104240155