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44004031 = 401910949
BaseRepresentation
bin1010011111011…
…1001010111111
310001210122011221
42213313022333
542231112111
64211054211
71043012431
oct247671277
9101718157
1044004031
1122925975
12128a1367
1391691b6
145bb6651
153ce3371
hex29f72bf

44004031 has 4 divisors (see below), whose sum is σ = 44019000. Its totient is φ = 43989064.

The previous prime is 44004017. The next prime is 44004053. The reversal of 44004031 is 13040044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-44004031 is a prime.

It is a super-2 number, since 2×440040312 = 3872709488497922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44003996 and 44004014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44004061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456 + ... + 9493.

It is an arithmetic number, because the mean of its divisors is an integer number (11004750).

Almost surely, 244004031 is an apocalyptic number.

44004031 is a deficient number, since it is larger than the sum of its proper divisors (14969).

44004031 is a wasteful number, since it uses less digits than its factorization.

44004031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14968.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 44004031 is about 6633.5534218095. The cubic root of 44004031 is about 353.0456141384.

Adding to 44004031 its reverse (13040044), we get a palindrome (57044075).

The spelling of 44004031 in words is "forty-four million, four thousand, thirty-one".

Divisors: 1 4019 10949 44004031