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22113055 = 519212251
BaseRepresentation
bin101010001011…
…0101100011111
31112121110102001
41110112230133
521130104210
62105543131
7355646356
oct124265437
945543361
1022113055
1111533958
1274a4aa7
134773163
142d1899d
151e1c03a
hex1516b1f

22113055 has 12 divisors (see below), whose sum is σ = 28008072. Its totient is φ = 16758000.

The previous prime is 22113043. The next prime is 22113059. The reversal of 22113055 is 55031122.

22113055 = 21012 + 21022 + ... + 21052.

It is not a de Polignac number, because 22113055 - 211 = 22111007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4321 + ... + 7930.

It is an arithmetic number, because the mean of its divisors is an integer number (2334006).

Almost surely, 222113055 is an apocalyptic number.

22113055 is a deficient number, since it is larger than the sum of its proper divisors (5895017).

22113055 is a wasteful number, since it uses less digits than its factorization.

22113055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12294 (or 12275 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 22113055 is about 4702.4520199572. The cubic root of 22113055 is about 280.6830898275.

Adding to 22113055 its reverse (55031122), we get a palindrome (77144177).

The spelling of 22113055 in words is "twenty-two million, one hundred thirteen thousand, fifty-five".

Divisors: 1 5 19 95 361 1805 12251 61255 232769 1163845 4422611 22113055