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104490865 = 561342593
BaseRepresentation
bin1100011101001…
…10011101110001
321021121200112001
412032212131301
5203222201430
614211334001
72406105043
oct616463561
9237550461
10104490865
1153a89596
122abb1301
131885691b
14dc3da93
1592903ca
hex63a6771

104490865 has 8 divisors (see below), whose sum is σ = 127444968. Its totient is φ = 82222080.

The previous prime is 104490847. The next prime is 104490877. The reversal of 104490865 is 568094401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10556001 + 93934864 = 3249^2 + 9692^2 .

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

It is not a de Polignac number, because 104490865 - 217 = 104359793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170992 + ... + 171601.

It is an arithmetic number, because the mean of its divisors is an integer number (15930621).

Almost surely, 2104490865 is an apocalyptic number.

It is an amenable number.

104490865 is a deficient number, since it is larger than the sum of its proper divisors (22954103).

104490865 is an equidigital number, since it uses as much as digits as its factorization.

104490865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342659.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 104490865 is about 10222.0773329104. The cubic root of 104490865 is about 471.0056406090.

The spelling of 104490865 in words is "one hundred four million, four hundred ninety thousand, eight hundred sixty-five".

Divisors: 1 5 61 305 342593 1712965 20898173 104490865