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89806373 = 154957977
BaseRepresentation
bin1010101101001…
…01011000100101
320020222122011222
411112211120211
5140442300443
612524510125
72140225106
oct526453045
9206878158
1089806373
1146769948
12260ab345
13157b4a87
14bcda3ad
157d3e468
hex55a5625

89806373 has 4 divisors (see below), whose sum is σ = 89865900. Its totient is φ = 89746848.

The previous prime is 89806357. The next prime is 89806397. The reversal of 89806373 is 37360898.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28058209 + 61748164 = 5297^2 + 7858^2 .

It is a cyclic number.

It is not a de Polignac number, because 89806373 - 24 = 89806357 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 (89806303) 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 3 ways as a sum of consecutive naturals, for example, 27440 + ... + 30537.

It is an arithmetic number, because the mean of its divisors is an integer number (22466475).

Almost surely, 289806373 is an apocalyptic number.

It is an amenable number.

89806373 is a deficient number, since it is larger than the sum of its proper divisors (59527).

89806373 is a wasteful number, since it uses less digits than its factorization.

89806373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59526.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 89806373 is about 9476.6224468425. The cubic root of 89806373 is about 447.8188657755.

The spelling of 89806373 in words is "eighty-nine million, eight hundred six thousand, three hundred seventy-three".

Divisors: 1 1549 57977 89806373