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109486805 = 545614801
BaseRepresentation
bin1101000011010…
…10001011010101
321122000111122212
412201222023111
5211012034210
614510403205
72466423341
oct641521325
9248014585
10109486805
115689106a
1230800505
13198b58bc
1410780621
15992a805
hex686a2d5

109486805 has 8 divisors (see below), whose sum is σ = 131440344. Its totient is φ = 87552000.

The previous prime is 109486799. The next prime is 109486807. The reversal of 109486805 is 508684901.

It can be written as a sum of positive squares in 4 ways, for example, as 8162449 + 101324356 = 2857^2 + 10066^2 .

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

It is not a de Polignac number, because 109486805 - 28 = 109486549 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 (109486807) 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 7 ways as a sum of consecutive naturals, for example, 20405 + ... + 25205.

It is an arithmetic number, because the mean of its divisors is an integer number (16430043).

Almost surely, 2109486805 is an apocalyptic number.

It is an amenable number.

109486805 is a deficient number, since it is larger than the sum of its proper divisors (21953539).

109486805 is an equidigital number, since it uses as much as digits as its factorization.

109486805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9367.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 109486805 is about 10463.5942677457. The cubic root of 109486805 is about 478.3956927876.

The spelling of 109486805 in words is "one hundred nine million, four hundred eighty-six thousand, eight hundred five".

Divisors: 1 5 4561 4801 22805 24005 21897361 109486805