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22242141 = 3319191227
BaseRepresentation
bin101010011011…
…0001101011101
31112212000111000
41110312031131
521143222031
62112420513
7360024615
oct124661535
945760430
1022242141
1111611939
127547739
1347b9b3c
142d4da45
151e453e6
hex153635d

22242141 has 32 divisors (see below), whose sum is σ = 35020800. Its totient is φ = 13912560.

The previous prime is 22242109. The next prime is 22242161. The reversal of 22242141 is 14124222.

It is not a de Polignac number, because 22242141 - 25 = 22242109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22242161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97870 + ... + 98096.

It is an arithmetic number, because the mean of its divisors is an integer number (1094400).

Almost surely, 222242141 is an apocalyptic number.

It is an amenable number.

22242141 is a deficient number, since it is larger than the sum of its proper divisors (12778659).

22242141 is a wasteful number, since it uses less digits than its factorization.

22242141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 440 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 22242141 is about 4716.1574401201. The cubic root of 22242141 is about 281.2281974210.

Adding to 22242141 its reverse (14124222), we get a palindrome (36366363).

The spelling of 22242141 in words is "twenty-two million, two hundred forty-two thousand, one hundred forty-one".

Divisors: 1 3 9 19 27 57 171 191 227 513 573 681 1719 2043 3629 4313 5157 6129 10887 12939 32661 38817 43357 97983 116451 130071 390213 823783 1170639 2471349 7414047 22242141