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104047447 = 729717219
BaseRepresentation
bin1100011001110…
…10001101010111
321020210011021011
412030322031113
5203114004242
614154033051
72402250220
oct614721527
9236704234
10104047447
1153806429
122aa18787
131872cb4a
14db66247
159203d17
hex633a357

104047447 has 16 divisors (see below), whose sum is σ = 124761600. Its totient is φ = 84883680.

The previous prime is 104047421. The next prime is 104047457. The reversal of 104047447 is 744740401.

It is a de Polignac number, because none of the positive numbers 2k-104047447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104047457) 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, 10804 + ... + 18022.

It is an arithmetic number, because the mean of its divisors is an integer number (7797600).

Almost surely, 2104047447 is an apocalyptic number.

104047447 is a deficient number, since it is larger than the sum of its proper divisors (20714153).

104047447 is an equidigital number, since it uses as much as digits as its factorization.

104047447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7326.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 104047447 is about 10200.3650424875. The cubic root of 104047447 is about 470.3384419129.

Adding to 104047447 its reverse (744740401), we get a palindrome (848787848).

The spelling of 104047447 in words is "one hundred four million, forty-seven thousand, four hundred forty-seven".

Divisors: 1 7 29 71 203 497 2059 7219 14413 50533 209351 512549 1465457 3587843 14863921 104047447