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22131341 = 167132523
BaseRepresentation
bin101010001101…
…1001010001101
31112122101111022
41110123022031
521131200331
62110203525
7356053601
oct124331215
945571438
1022131341
1111546671
1274b35a5
13477b58b
142d21501
151e2267b
hex151b28d

22131341 has 4 divisors (see below), whose sum is σ = 22264032. Its totient is φ = 21998652.

The previous prime is 22131289. The next prime is 22131397. The reversal of 22131341 is 14313122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14313122 = 27156561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22131341 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 (22130341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66095 + ... + 66428.

It is an arithmetic number, because the mean of its divisors is an integer number (5566008).

Almost surely, 222131341 is an apocalyptic number.

It is an amenable number.

22131341 is a deficient number, since it is larger than the sum of its proper divisors (132691).

22131341 is a wasteful number, since it uses less digits than its factorization.

22131341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132690.

The product of its digits is 144, while the sum is 17.

The square root of 22131341 is about 4704.3959229640. The cubic root of 22131341 is about 280.7604371512.

Adding to 22131341 its reverse (14313122), we get a palindrome (36444463).

The spelling of 22131341 in words is "twenty-two million, one hundred thirty-one thousand, three hundred forty-one".

Divisors: 1 167 132523 22131341