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22134161 = 78833581
BaseRepresentation
bin101010001101…
…1110110010001
31112122112100202
41110123312101
521131243121
62110224545
7356065040
oct124336621
945575322
1022134161
11115487a5
1274b5155
13477c94a
142d22557
151e2340b
hex151bd91

22134161 has 8 divisors (see below), whose sum is σ = 25331904. Its totient is φ = 18945360.

The previous prime is 22134157. The next prime is 22134199. The reversal of 22134161 is 16143122.

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

It is not a de Polignac number, because 22134161 - 22 = 22134157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22134461) 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 7 ways as a sum of consecutive naturals, for example, 4391 + ... + 7971.

It is an arithmetic number, because the mean of its divisors is an integer number (3166488).

Almost surely, 222134161 is an apocalyptic number.

It is an amenable number.

22134161 is a deficient number, since it is larger than the sum of its proper divisors (3197743).

22134161 is an equidigital number, since it uses as much as digits as its factorization.

22134161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471.

The product of its digits is 288, while the sum is 20.

The square root of 22134161 is about 4704.6956330883. The cubic root of 22134161 is about 280.7723615801.

Adding to 22134161 its reverse (16143122), we get a palindrome (38277283).

The spelling of 22134161 in words is "twenty-two million, one hundred thirty-four thousand, one hundred sixty-one".

Divisors: 1 7 883 3581 6181 25067 3162023 22134161