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104212587 = 3191828291
BaseRepresentation
bin1100011011000…
…10100001101011
321021002112210110
412031202201223
5203134300322
614201345403
72403535533
oct615424153
9237075713
10104212587
1153909506
122aa98263
131878a06b
14dbaa4c3
159237c0c
hex636286b

104212587 has 8 divisors (see below), whose sum is σ = 146263360. Its totient is φ = 65818440.

The previous prime is 104212571. The next prime is 104212597. The reversal of 104212587 is 785212401.

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

It is not a de Polignac number, because 104212587 - 24 = 104212571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104212597) 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, 914089 + ... + 914202.

It is an arithmetic number, because the mean of its divisors is an integer number (18282920).

Almost surely, 2104212587 is an apocalyptic number.

104212587 is a deficient number, since it is larger than the sum of its proper divisors (42050773).

104212587 is a wasteful number, since it uses less digits than its factorization.

104212587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828313.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 104212587 is about 10208.4566414321. The cubic root of 104212587 is about 470.5871445842.

Adding to 104212587 its reverse (785212401), we get a palindrome (889424988).

The spelling of 104212587 in words is "one hundred four million, two hundred twelve thousand, five hundred eighty-seven".

Divisors: 1 3 19 57 1828291 5484873 34737529 104212587