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8222979 = 329472011
BaseRepresentation
bin11111010111100100000011
3120110202210210
4133113210003
54101113404
6452125203
7126615462
oct37274403
916422723
108222979
114707056
122906803
13191ba8b
1411409d9
15ac6689
hex7d7903

8222979 has 16 divisors (see below), whose sum is σ = 11589120. Its totient is φ = 5177760.

The previous prime is 8222969. The next prime is 8222987. The reversal of 8222979 is 9792228.

8222979 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8222979 - 25 = 8222947 is a prime.

8222979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8222959) 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, 3084 + ... + 5094.

It is an arithmetic number, because the mean of its divisors is an integer number (724320).

Almost surely, 28222979 is an apocalyptic number.

8222979 is a deficient number, since it is larger than the sum of its proper divisors (3366141).

8222979 is a wasteful number, since it uses less digits than its factorization.

8222979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090.

The product of its digits is 36288, while the sum is 39.

The square root of 8222979 is about 2867.5737130892. The cubic root of 8222979 is about 201.8411570268.

The spelling of 8222979 in words is "eight million, two hundred twenty-two thousand, nine hundred seventy-nine".

Divisors: 1 3 29 47 87 141 1363 2011 4089 6033 58319 94517 174957 283551 2740993 8222979