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104487943 = 722132407
BaseRepresentation
bin1100011101001…
…01110000000111
321021121112111211
412032211300013
5203222103233
614211312251
72406063400
oct616456007
9237545454
10104487943
1153a8737a
122abab687
13188554b1
14dc3c9a7
15928e5cd
hex63a5c07

104487943 has 6 divisors (see below), whose sum is σ = 121547256. Its totient is φ = 89561052.

The previous prime is 104487941. The next prime is 104487947. The reversal of 104487943 is 349784401.

It is not a de Polignac number, because 104487943 - 21 = 104487941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104487896 and 104487905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104487941) 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 5 ways as a sum of consecutive naturals, for example, 1066155 + ... + 1066252.

It is an arithmetic number, because the mean of its divisors is an integer number (20257876).

Almost surely, 2104487943 is an apocalyptic number.

104487943 is a deficient number, since it is larger than the sum of its proper divisors (17059313).

104487943 is an equidigital number, since it uses as much as digits as its factorization.

104487943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132421 (or 2132414 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 104487943 is about 10221.9344059723. The cubic root of 104487943 is about 471.0012501413.

The spelling of 104487943 in words is "one hundred four million, four hundred eighty-seven thousand, nine hundred forty-three".

Divisors: 1 7 49 2132407 14926849 104487943