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44105213 = 197331799
BaseRepresentation
bin1010100000111…
…1110111111101
310001222202222102
42220033313331
542242331323
64213154445
71043613425
oct250176775
9101882872
1044105213
1122994999
121292ba25
1391a3279
145c01485
153d13328
hex2a0fdfd

44105213 has 8 divisors (see below), whose sum is σ = 47064000. Its totient is φ = 41210208.

The previous prime is 44105203. The next prime is 44105231. The reversal of 44105213 is 31250144.

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 44105213 - 218 = 43843069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44105203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14513 + ... + 17286.

It is an arithmetic number, because the mean of its divisors is an integer number (5883000).

Almost surely, 244105213 is an apocalyptic number.

It is an amenable number.

44105213 is a deficient number, since it is larger than the sum of its proper divisors (2958787).

44105213 is a wasteful number, since it uses less digits than its factorization.

44105213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31891.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 44105213 is about 6641.1755736466. The cubic root of 44105213 is about 353.3160023737.

Adding to 44105213 its reverse (31250144), we get a palindrome (75355357).

The spelling of 44105213 in words is "forty-four million, one hundred five thousand, two hundred thirteen".

Divisors: 1 19 73 1387 31799 604181 2321327 44105213