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8292289 = 29733917
BaseRepresentation
bin11111101000011111000001
3120121021212211
4133220133001
54110323124
6453422121
7130324525
oct37503701
916537784
108292289
114754135
12293a941
1319444a5
14115bd85
15adbe94
hex7e87c1

8292289 has 8 divisors (see below), whose sum is σ = 8697960. Its totient is φ = 7894656.

The previous prime is 8292247. The next prime is 8292293. The reversal of 8292289 is 9822928.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2689600 + 5602689 = 1640^2 + 2367^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8292289 - 213 = 8284097 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8292689) 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, 159 + ... + 4075.

It is an arithmetic number, because the mean of its divisors is an integer number (1087245).

Almost surely, 28292289 is an apocalyptic number.

It is an amenable number.

8292289 is a deficient number, since it is larger than the sum of its proper divisors (405671).

8292289 is a wasteful number, since it uses less digits than its factorization.

8292289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019.

The product of its digits is 41472, while the sum is 40.

The square root of 8292289 is about 2879.6334836225. The cubic root of 8292289 is about 202.4066653145.

The spelling of 8292289 in words is "eight million, two hundred ninety-two thousand, two hundred eighty-nine".

Divisors: 1 29 73 2117 3917 113593 285941 8292289