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8470223 = 31273233
BaseRepresentation
bin100000010011…
…111011001111
3120221022221222
4200103323033
54132021343
6501313555
7131665346
oct40237317
916838858
108470223
114865893
122a058bb
1319a7488
1411a6b5d
15b24a68
hex813ecf

8470223 has 4 divisors (see below), whose sum is σ = 8743488. Its totient is φ = 8196960.

The previous prime is 8470213. The next prime is 8470237. The reversal of 8470223 is 3220748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8470223 - 26 = 8470159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8470192 and 8470201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8470213) 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 3 ways as a sum of consecutive naturals, for example, 136586 + ... + 136647.

It is an arithmetic number, because the mean of its divisors is an integer number (2185872).

Almost surely, 28470223 is an apocalyptic number.

8470223 is a deficient number, since it is larger than the sum of its proper divisors (273265).

8470223 is a wasteful number, since it uses less digits than its factorization.

8470223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273264.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 8470223 is about 2910.3647537723. The cubic root of 8470223 is about 203.8441636340.

It can be divided in two parts, 84 and 70223, that added together give a palindrome (70307).

The spelling of 8470223 in words is "eight million, four hundred seventy thousand, two hundred twenty-three".

Divisors: 1 31 273233 8470223