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228515227 = 10115714411
BaseRepresentation
bin11011001111011…
…01110110011011
3120220222202221221
431213231312123
5431444441402
634401512511
75443230103
oct1547556633
9526882857
10228515227
11107a99966
1264642737
133845c515
14224c6203
15150dd337
hexd9edd9b

228515227 has 8 divisors (see below), whose sum is σ = 232263792. Its totient is φ = 224796000.

The previous prime is 228515197. The next prime is 228515237. The reversal of 228515227 is 722515822.

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 228515227 - 211 = 228513179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228515192 and 228515201.

It is not an unprimeable number, because it can be changed into a prime (228515237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8652 + ... + 23062.

It is an arithmetic number, because the mean of its divisors is an integer number (29032974).

Almost surely, 2228515227 is an apocalyptic number.

228515227 is a deficient number, since it is larger than the sum of its proper divisors (3748565).

228515227 is a wasteful number, since it uses less digits than its factorization.

228515227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14669.

The product of its digits is 22400, while the sum is 34.

The square root of 228515227 is about 15116.7201138342. The cubic root of 228515227 is about 611.3713008764.

The spelling of 228515227 in words is "two hundred twenty-eight million, five hundred fifteen thousand, two hundred twenty-seven".

Divisors: 1 101 157 14411 15857 1455511 2262527 228515227