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104388487 = 729514229
BaseRepresentation
bin1100011100011…
…01011110000111
321021102111002021
412032031132013
5203210412422
614205224011
72405200420
oct616153607
9237374067
10104388487
1153a19685
122ab62007
131881c148
14dc14647
15926edc7
hex638d787

104388487 has 8 divisors (see below), whose sum is σ = 123415200. Its totient is φ = 86390304.

The previous prime is 104388481. The next prime is 104388499. The reversal of 104388487 is 784883401.

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

It is not a de Polignac number, because 104388487 - 219 = 103864199 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 (104388481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256912 + ... + 257317.

It is an arithmetic number, because the mean of its divisors is an integer number (15426900).

Almost surely, 2104388487 is an apocalyptic number.

104388487 is a deficient number, since it is larger than the sum of its proper divisors (19026713).

104388487 is an equidigital number, since it uses as much as digits as its factorization.

104388487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514265.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 104388487 is about 10217.0684151571. The cubic root of 104388487 is about 470.8517631303.

The spelling of 104388487 in words is "one hundred four million, three hundred eighty-eight thousand, four hundred eighty-seven".

Divisors: 1 7 29 203 514229 3599603 14912641 104388487