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8122265 = 51624453
BaseRepresentation
bin11110111110111110011001
3120021122122122
4132332332121
54034403030
6450031025
7126016034
oct36767631
916248578
108122265
114648418
122878475
1318b4c98
14111601b
15aa68e5
hex7bef99

8122265 has 4 divisors (see below), whose sum is σ = 9746724. Its totient is φ = 6497808.

The previous prime is 8122249. The next prime is 8122273. The reversal of 8122265 is 5622218.

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 4721929 + 3400336 = 2173^2 + 1844^2 .

It is a cyclic number.

It is not a de Polignac number, because 8122265 - 24 = 8122249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812222 + ... + 812231.

It is an arithmetic number, because the mean of its divisors is an integer number (2436681).

Almost surely, 28122265 is an apocalyptic number.

It is an amenable number.

8122265 is a deficient number, since it is larger than the sum of its proper divisors (1624459).

8122265 is a wasteful number, since it uses less digits than its factorization.

8122265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624458.

The product of its digits is 1920, while the sum is 26.

The square root of 8122265 is about 2849.9587716316. The cubic root of 8122265 is about 201.0137280955.

The spelling of 8122265 in words is "eight million, one hundred twenty-two thousand, two hundred sixty-five".

Divisors: 1 5 1624453 8122265