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22230131 = 7113167139
BaseRepresentation
bin101010011001…
…1010001110011
31112211102000012
41110303101303
521142331011
62112245135
7356644610
oct124632163
945742005
1022230131
1111603910
1275407ab
1347b4531
142d49507
151e41a8b
hex1533473

22230131 has 32 divisors (see below), whose sum is σ = 29245440. Its totient is φ = 16394400.

The previous prime is 22230119. The next prime is 22230149. The reversal of 22230131 is 13103222.

It is a happy number.

It is not a de Polignac number, because 22230131 - 218 = 21967987 is a prime.

It is a super-3 number, since 3×222301313 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22230731) 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 31 ways as a sum of consecutive naturals, for example, 159860 + ... + 159998.

It is an arithmetic number, because the mean of its divisors is an integer number (913920).

Almost surely, 222230131 is an apocalyptic number.

22230131 is a deficient number, since it is larger than the sum of its proper divisors (7015309).

22230131 is a wasteful number, since it uses less digits than its factorization.

22230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22230131 is about 4714.8839858474. The cubic root of 22230131 is about 281.1775704190.

Adding to 22230131 its reverse (13103222), we get a palindrome (35333353).

The spelling of 22230131 in words is "twenty-two million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 7 11 31 67 77 139 217 341 469 737 973 1529 2077 2387 4309 5159 9313 10703 14539 22847 30163 47399 65191 102443 159929 288703 331793 717101 2020921 3175733 22230131