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22672241 = 181125261
BaseRepresentation
bin101011001111…
…1001101110001
31120122212110122
41112133031301
521301002431
62125540025
7363465554
oct126371561
946585418
1022672241
1111885a99
127714615
13490a837
14302269b
151ecca7b
hex159f371

22672241 has 4 divisors (see below), whose sum is σ = 22797684. Its totient is φ = 22546800.

The previous prime is 22672201. The next prime is 22672249. The reversal of 22672241 is 14227622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 384400 + 22287841 = 620^2 + 4721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22672241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22672241.

It is not an unprimeable number, because it can be changed into a prime (22672249) 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, 62450 + ... + 62811.

It is an arithmetic number, because the mean of its divisors is an integer number (5699421).

Almost surely, 222672241 is an apocalyptic number.

It is an amenable number.

22672241 is a deficient number, since it is larger than the sum of its proper divisors (125443).

22672241 is a wasteful number, since it uses less digits than its factorization.

22672241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125442.

The product of its digits is 2688, while the sum is 26.

The square root of 22672241 is about 4761.5376718031. The cubic root of 22672241 is about 283.0293559595.

Adding to 22672241 its reverse (14227622), we get a palindrome (36899863).

The spelling of 22672241 in words is "twenty-two million, six hundred seventy-two thousand, two hundred forty-one".

Divisors: 1 181 125261 22672241