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8216223 = 37337517
BaseRepresentation
bin11111010101111010011111
3120110102112120
4133111322133
54100404343
6452034023
7126560001
oct37257237
916412476
108216223
114701a74
122902913
131918992
14113c371
15ac4683
hex7d5e9f

8216223 has 8 divisors (see below), whose sum is σ = 11105328. Its totient is φ = 5402304.

The previous prime is 8216179. The next prime is 8216231. The reversal of 8216223 is 3226128.

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

It is not a de Polignac number, because 8216223 - 216 = 8150687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8216193 and 8216202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216293) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18540 + ... + 18977.

It is an arithmetic number, because the mean of its divisors is an integer number (1388166).

Almost surely, 28216223 is an apocalyptic number.

8216223 is a deficient number, since it is larger than the sum of its proper divisors (2889105).

8216223 is a wasteful number, since it uses less digits than its factorization.

8216223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37593.

The product of its digits is 1152, while the sum is 24.

The square root of 8216223 is about 2866.3954716682. The cubic root of 8216223 is about 201.7858643126.

The spelling of 8216223 in words is "eight million, two hundred sixteen thousand, two hundred twenty-three".

Divisors: 1 3 73 219 37517 112551 2738741 8216223