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44002321031 = 138131862651
BaseRepresentation
bin101000111110101111…
…100010001010000111
311012120121010111210202
4220332233202022013
51210104043233111
632114150241115
73115263362144
oct507657421207
9135517114722
1044002321031
1117730188079
12864035619b
1341c3307566
1421b5d673cb
151228069b3b
hexa3ebe2287

44002321031 has 4 divisors (see below), whose sum is σ = 44034185064. Its totient is φ = 43970457000.

The previous prime is 44002320959. The next prime is 44002321037. The reversal of 44002321031 is 13012320044.

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

It is a cyclic number.

It is not a de Polignac number, because 44002321031 - 210 = 44002320007 is a prime.

It is a super-2 number, since 2×440023210312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44002320994 and 44002321012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44002321037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15929945 + ... + 15932706.

It is an arithmetic number, because the mean of its divisors is an integer number (11008546266).

Almost surely, 244002321031 is an apocalyptic number.

44002321031 is a deficient number, since it is larger than the sum of its proper divisors (31864033).

44002321031 is a wasteful number, since it uses less digits than its factorization.

44002321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31864032.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 44002321031 its reverse (13012320044), we get a palindrome (57014641075).

The spelling of 44002321031 in words is "forty-four billion, two million, three hundred twenty-one thousand, thirty-one".

Divisors: 1 1381 31862651 44002321031