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11222055 = 3251319183
BaseRepresentation
bin101010110011…
…110000100111
3210010010202200
4222303300213
510333101210
61040305543
7164246235
oct52636047
923103680
1011222055
116375329
1239122b3
13242bb90
1416c1955
15eba0c0
hexab3c27

11222055 has 24 divisors (see below), whose sum is σ = 20948928. Its totient is φ = 5524416.

The previous prime is 11222051. The next prime is 11222083. The reversal of 11222055 is 55022211.

It is not a de Polignac number, because 11222055 - 22 = 11222051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222051) 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 23 ways as a sum of consecutive naturals, for example, 9007 + ... + 10176.

It is an arithmetic number, because the mean of its divisors is an integer number (872872).

Almost surely, 211222055 is an apocalyptic number.

11222055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11222055 is a deficient number, since it is larger than the sum of its proper divisors (9726873).

11222055 is a wasteful number, since it uses less digits than its factorization.

11222055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19207 (or 19204 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 11222055 is about 3349.9335814311. The cubic root of 11222055 is about 223.8845533400.

Adding to 11222055 its reverse (55022211), we get a palindrome (66244266).

The spelling of 11222055 in words is "eleven million, two hundred twenty-two thousand, fifty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 19183 57549 95915 172647 249379 287745 748137 863235 1246895 2244411 3740685 11222055