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22131241 = 113164901
BaseRepresentation
bin101010001101…
…1001000101001
31112122101100121
41110123020221
521131144431
62110203241
7356053366
oct124331051
945571317
1022131241
1111546590
1274b3521
13477b512
142d2146d
151e22611
hex151b229

22131241 has 8 divisors (see below), whose sum is σ = 24922368. Its totient is φ = 19470000.

The previous prime is 22131223. The next prime is 22131259. The reversal of 22131241 is 14213122.

It is an interprime number because it is at equal distance from previous prime (22131223) and next prime (22131259).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22131241 - 27 = 22131113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32110 + ... + 32791.

It is an arithmetic number, because the mean of its divisors is an integer number (3115296).

Almost surely, 222131241 is an apocalyptic number.

It is an amenable number.

22131241 is a deficient number, since it is larger than the sum of its proper divisors (2791127).

22131241 is a wasteful number, since it uses less digits than its factorization.

22131241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64943.

The product of its digits is 96, while the sum is 16.

The square root of 22131241 is about 4704.3852945948. The cubic root of 22131241 is about 280.7600142805.

Adding to 22131241 its reverse (14213122), we get a palindrome (36344363).

The spelling of 22131241 in words is "twenty-two million, one hundred thirty-one thousand, two hundred forty-one".

Divisors: 1 11 31 341 64901 713911 2011931 22131241