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8229409 = 67122827
BaseRepresentation
bin11111011001001000100001
3120111002121221
4133121020201
54101320114
6452215041
7126643306
oct37311041
916432557
108229409
114710971
12290a481
131921996
1411430ad
15ac8524
hex7d9221

8229409 has 4 divisors (see below), whose sum is σ = 8352304. Its totient is φ = 8106516.

The previous prime is 8229407. The next prime is 8229433. The reversal of 8229409 is 9049228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8229409 - 21 = 8229407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8229401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61347 + ... + 61480.

It is an arithmetic number, because the mean of its divisors is an integer number (2088076).

Almost surely, 28229409 is an apocalyptic number.

It is an amenable number.

8229409 is a deficient number, since it is larger than the sum of its proper divisors (122895).

8229409 is a wasteful number, since it uses less digits than its factorization.

8229409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122894.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 8229409 is about 2868.6946508822. The cubic root of 8229409 is about 201.8937535575.

The spelling of 8229409 in words is "eight million, two hundred twenty-nine thousand, four hundred nine".

Divisors: 1 67 122827 8229409