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44028901 = 72898549
BaseRepresentation
bin1010011111110…
…1001111100101
310001211220022001
42213331033211
542232411101
64211405301
71043145100
oct247751745
9101756261
1044028901
1122942624
12128b3831
139177607
145bc1737
153cea901
hex29fd3e5

44028901 has 6 divisors (see below), whose sum is σ = 51217350. Its totient is φ = 37739016.

The previous prime is 44028893. The next prime is 44028917. The reversal of 44028901 is 10982044.

It can be written as a sum of positive squares in only one way, i.e., 40132225 + 3896676 = 6335^2 + 1974^2 .

It is not a de Polignac number, because 44028901 - 23 = 44028893 is a prime.

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 44028901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44028961) 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 5 ways as a sum of consecutive naturals, for example, 449226 + ... + 449323.

It is an arithmetic number, because the mean of its divisors is an integer number (8536225).

Almost surely, 244028901 is an apocalyptic number.

It is an amenable number.

44028901 is a deficient number, since it is larger than the sum of its proper divisors (7188449).

44028901 is an equidigital number, since it uses as much as digits as its factorization.

44028901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898563 (or 898556 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 44028901 is about 6635.4277179395. The cubic root of 44028901 is about 353.1121125221.

The spelling of 44028901 in words is "forty-four million, twenty-eight thousand, nine hundred one".

Divisors: 1 7 49 898549 6289843 44028901