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44380385 = 571268011
BaseRepresentation
bin1010100101001…
…1000011100001
310002111202102222
42221103003201
542330133020
64223120425
71046140610
oct251230341
9102452388
1044380385
1123062705
1212a43115
13926b5aa
145c73877
153d69b25
hex2a530e1

44380385 has 8 divisors (see below), whose sum is σ = 60864576. Its totient is φ = 30432240.

The previous prime is 44380381. The next prime is 44380433. The reversal of 44380385 is 58308344.

It is a happy number.

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

It is not a de Polignac number, because 44380385 - 22 = 44380381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1268011 = 44380385 / (4 + 4 + 3 + 8 + 0 + 3 + 8 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44380381) 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, 633971 + ... + 634040.

It is an arithmetic number, because the mean of its divisors is an integer number (7608072).

Almost surely, 244380385 is an apocalyptic number.

It is an amenable number.

44380385 is a deficient number, since it is larger than the sum of its proper divisors (16484191).

44380385 is a wasteful number, since it uses less digits than its factorization.

44380385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268023.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 44380385 is about 6661.8604758731. The cubic root of 44380385 is about 354.0492579375.

The spelling of 44380385 in words is "forty-four million, three hundred eighty thousand, three hundred eighty-five".

Divisors: 1 5 7 35 1268011 6340055 8876077 44380385