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104387849 = 293599581
BaseRepresentation
bin1100011100011…
…01010100001001
321021102110012122
412032031110021
5203210402344
614205221025
72405165516
oct616152411
9237373178
10104387849
1153a19155
122ab61775
131881ba77
14dc1430d
15926eaee
hex638d509

104387849 has 4 divisors (see below), whose sum is σ = 107987460. Its totient is φ = 100788240.

The previous prime is 104387831. The next prime is 104387867. The reversal of 104387849 is 948783401.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (104387831) and next prime (104387867).

It can be written as a sum of positive squares in 2 ways, for example, as 27510025 + 76877824 = 5245^2 + 8768^2 .

It is a cyclic number.

It is not a de Polignac number, because 104387849 - 216 = 104322313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104387449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1799762 + ... + 1799819.

It is an arithmetic number, because the mean of its divisors is an integer number (26996865).

Almost surely, 2104387849 is an apocalyptic number.

It is an amenable number.

104387849 is a deficient number, since it is larger than the sum of its proper divisors (3599611).

104387849 is an equidigital number, since it uses as much as digits as its factorization.

104387849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599610.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 104387849 is about 10217.0371928461. The cubic root of 104387849 is about 470.8508038801.

The spelling of 104387849 in words is "one hundred four million, three hundred eighty-seven thousand, eight hundred forty-nine".

Divisors: 1 29 3599581 104387849