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44312945 = 513216709
BaseRepresentation
bin1010100100001…
…0100101110001
310002101022221012
42221002211301
542321003240
64221440305
71045440155
oct251024561
9102338835
1044312945
1123016a76
1212a10095
1392469a1
145c57065
153d54b65
hex2a42971

44312945 has 8 divisors (see below), whose sum is σ = 53223720. Its totient is φ = 35418240.

The previous prime is 44312909. The next prime is 44312951. The reversal of 44312945 is 54921344.

It can be written as a sum of positive squares in 4 ways, for example, as 16613776 + 27699169 = 4076^2 + 5263^2 .

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

It is not a de Polignac number, because 44312945 - 214 = 44296561 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3251 + ... + 9959.

It is an arithmetic number, because the mean of its divisors is an integer number (6652965).

Almost surely, 244312945 is an apocalyptic number.

It is an amenable number.

44312945 is a deficient number, since it is larger than the sum of its proper divisors (8910775).

44312945 is a wasteful number, since it uses less digits than its factorization.

44312945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035.

The product of its digits is 17280, while the sum is 32.

The square root of 44312945 is about 6656.7969024149. The cubic root of 44312945 is about 353.8698304222.

The spelling of 44312945 in words is "forty-four million, three hundred twelve thousand, nine hundred forty-five".

Divisors: 1 5 1321 6605 6709 33545 8862589 44312945