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89887305 = 3519930113
BaseRepresentation
bin1010101101110…
…01001001001001
320021010202012110
411112321021021
5141002343210
612530332533
72141013054
oct526711111
9207122173
1089887305
1146814732
122612a149
1315812871
14bd1ba9b
157d58420
hex55b9249

89887305 has 16 divisors (see below), whose sum is σ = 144547200. Its totient is φ = 47697408.

The previous prime is 89887297. The next prime is 89887307. The reversal of 89887305 is 50378898.

It is a happy number.

It is not a de Polignac number, because 89887305 - 23 = 89887297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89887307) 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 15 ways as a sum of consecutive naturals, for example, 12072 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (9034200).

Almost surely, 289887305 is an apocalyptic number.

It is an amenable number.

89887305 is a deficient number, since it is larger than the sum of its proper divisors (54659895).

89887305 is a wasteful number, since it uses less digits than its factorization.

89887305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30320.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 89887305 is about 9480.8915719989. The cubic root of 89887305 is about 447.9533476745.

The spelling of 89887305 in words is "eighty-nine million, eight hundred eighty-seven thousand, three hundred five".

Divisors: 1 3 5 15 199 597 995 2985 30113 90339 150565 451695 5992487 17977461 29962435 89887305