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22261441 = 312512861
BaseRepresentation
bin101010011101…
…0111011000001
31112212222221211
41110322323001
521144331231
62113050121
7360135106
oct124727301
945788854
1022261441
1111625394
127556941
1347c5867
142d56aad
151e4aeb1
hex153aec1

22261441 has 8 divisors (see below), whose sum is σ = 23079168. Its totient is φ = 21450000.

The previous prime is 22261439. The next prime is 22261451. The reversal of 22261441 is 14416222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22261441 - 21 = 22261439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22261451) 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, 6351 + ... + 9211.

It is an arithmetic number, because the mean of its divisors is an integer number (2884896).

Almost surely, 222261441 is an apocalyptic number.

It is an amenable number.

22261441 is a deficient number, since it is larger than the sum of its proper divisors (817727).

22261441 is a wasteful number, since it uses less digits than its factorization.

22261441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143.

The product of its digits is 768, while the sum is 22.

The square root of 22261441 is about 4718.2031537440. The cubic root of 22261441 is about 281.3095165568.

Adding to 22261441 its reverse (14416222), we get a palindrome (36677663).

The spelling of 22261441 in words is "twenty-two million, two hundred sixty-one thousand, four hundred forty-one".

Divisors: 1 31 251 2861 7781 88691 718111 22261441