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44130447 = 331634461
BaseRepresentation
bin1010100001011…
…0000010001111
310002001001121000
42220112002033
542244133242
64213511343
71044050124
oct250260217
9102031530
1044130447
1122a01949
1212942553
1391b18ba
145c0a74b
153d1aa4c
hex2a1608f

44130447 has 8 divisors (see below), whose sum is σ = 65378480. Its totient is φ = 29420280.

The previous prime is 44130413. The next prime is 44130461. The reversal of 44130447 is 74403144.

It is not a de Polignac number, because 44130447 - 218 = 43868303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1634461 = 44130447 / (4 + 4 + 1 + 3 + 0 + 4 + 4 + 7).

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 44130447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44130497) by changing a digit.

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, 817204 + ... + 817257.

It is an arithmetic number, because the mean of its divisors is an integer number (8172310).

Almost surely, 244130447 is an apocalyptic number.

44130447 is a deficient number, since it is larger than the sum of its proper divisors (21248033).

44130447 is a wasteful number, since it uses less digits than its factorization.

44130447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634470 (or 1634464 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 44130447 is about 6643.0751162395. The cubic root of 44130447 is about 353.3833706479.

The spelling of 44130447 in words is "forty-four million, one hundred thirty thousand, four hundred forty-seven".

Divisors: 1 3 9 27 1634461 4903383 14710149 44130447