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44750809 = 1491571913
BaseRepresentation
bin1010101010110…
…1011111011001
310010012120120101
42222231133121
542424011214
64235055401
71052242555
oct252553731
9103176511
1044750809
1123295a44
1212ba1561
13936b08c
145d2c865
153dde774
hex2aad7d9

44750809 has 8 divisors (see below), whose sum is σ = 45361800. Its totient is φ = 44144256.

The previous prime is 44750807. The next prime is 44750821. The reversal of 44750809 is 90805744.

It can be written as a sum of positive squares in 4 ways, for example, as 3341584 + 41409225 = 1828^2 + 6435^2 .

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 44750809 - 21 = 44750807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44750807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22437 + ... + 24349.

It is an arithmetic number, because the mean of its divisors is an integer number (5670225).

Almost surely, 244750809 is an apocalyptic number.

It is an amenable number.

44750809 is a deficient number, since it is larger than the sum of its proper divisors (610991).

44750809 is a wasteful number, since it uses less digits than its factorization.

44750809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 44750809 is about 6689.6045473555. The cubic root of 44750809 is about 355.0315623594.

The spelling of 44750809 in words is "forty-four million, seven hundred fifty thousand, eight hundred nine".

Divisors: 1 149 157 1913 23393 285037 300341 44750809