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4218227 = 131719087
BaseRepresentation
bin10000000101110101110011
321221022022122
4100011311303
52034440402
6230224455
750566016
oct20056563
97838278
104218227
112421242
1214b512b
13b48cc0
147bb37d
15584ca2
hex405d73

4218227 has 8 divisors (see below), whose sum is σ = 4810176. Its totient is φ = 3664512.

The previous prime is 4218199. The next prime is 4218241. The reversal of 4218227 is 7228124.

4218227 is nontrivially palindromic in base 11.

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

It is a cyclic number.

It is not a de Polignac number, because 4218227 - 26 = 4218163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4218196 and 4218205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218287) 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 7 ways as a sum of consecutive naturals, for example, 9323 + ... + 9764.

It is an arithmetic number, because the mean of its divisors is an integer number (601272).

Almost surely, 24218227 is an apocalyptic number.

4218227 is a deficient number, since it is larger than the sum of its proper divisors (591949).

4218227 is a wasteful number, since it uses less digits than its factorization.

4218227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19117.

The product of its digits is 1792, while the sum is 26.

The square root of 4218227 is about 2053.8322716327. The cubic root of 4218227 is about 161.5759243248.

The spelling of 4218227 in words is "four million, two hundred eighteen thousand, two hundred twenty-seven".

Divisors: 1 13 17 221 19087 248131 324479 4218227