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22205141 = 73172163
BaseRepresentation
bin101010010110…
…1001011010101
31112210010201122
41110231023111
521141031031
62111533325
7356512010
oct124551325
945703648
1022205141
1111597062
12752a245
1347a604a
142d40377
151e3947b
hex152d2d5

22205141 has 4 divisors (see below), whose sum is σ = 25377312. Its totient is φ = 19032972.

The previous prime is 22205137. The next prime is 22205177. The reversal of 22205141 is 14150222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22205141 - 22 = 22205137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22205101) 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 3 ways as a sum of consecutive naturals, for example, 1586075 + ... + 1586088.

It is an arithmetic number, because the mean of its divisors is an integer number (6344328).

Almost surely, 222205141 is an apocalyptic number.

It is an amenable number.

22205141 is a deficient number, since it is larger than the sum of its proper divisors (3172171).

22205141 is an equidigital number, since it uses as much as digits as its factorization.

22205141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172170.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 22205141 is about 4712.2331224166. The cubic root of 22205141 is about 281.0721689989.

Adding to 22205141 its reverse (14150222), we get a palindrome (36355363).

The spelling of 22205141 in words is "twenty-two million, two hundred five thousand, one hundred forty-one".

Divisors: 1 7 3172163 22205141