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22112055 = 335723399
BaseRepresentation
bin101010001011…
…0011100110111
31112121102001000
41110112130313
521130041210
62105534343
7355643430
oct124263467
945542030
1022112055
1111533129
1274a43b3
134772874
142d18487
151e1bac0
hex1516737

22112055 has 32 divisors (see below), whose sum is σ = 44928000. Its totient is φ = 10107936.

The previous prime is 22112033. The next prime is 22112063. The reversal of 22112055 is 55021122.

It is not a de Polignac number, because 22112055 - 28 = 22111799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10755 + ... + 12644.

It is an arithmetic number, because the mean of its divisors is an integer number (1404000).

Almost surely, 222112055 is an apocalyptic number.

22112055 is an abundant number, since it is smaller than the sum of its proper divisors (22815945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22112055 is a wasteful number, since it uses less digits than its factorization.

22112055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23420 (or 23414 counting only the distinct ones).

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

The square root of 22112055 is about 4702.3456912481. The cubic root of 22112055 is about 280.6788587323.

Adding to 22112055 its reverse (55021122), we get a palindrome (77133177).

It can be divided in two parts, 2211 and 2055, that multiplied together give a triangular number (4543605 = T3014).

The spelling of 22112055 in words is "twenty-two million, one hundred twelve thousand, fifty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 23399 70197 116995 163793 210591 350985 491379 631773 818965 1052955 1474137 2456895 3158865 4422411 7370685 22112055