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44323131431 = 251176586181
BaseRepresentation
bin101001010001110111…
…010101000000100111
311020101221210100221102
4221101313111000213
51211233210201211
632210050310315
73126240254345
oct512167250047
9136357710842
1044323131431
1117885285737
12870b88839b
1342449105b7
1422067d6995
1512462d9a3b
hexa51dd5027

44323131431 has 4 divisors (see below), whose sum is σ = 44499717864. Its totient is φ = 44146545000.

The previous prime is 44323131407. The next prime is 44323131439. The reversal of 44323131431 is 13413132344.

It is a happy number.

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 44323131431 - 226 = 44256022567 is a prime.

It is a super-2 number, since 2×443231314312 (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 = 44323131394 and 44323131403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44323131439) 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 3 ways as a sum of consecutive naturals, for example, 88292840 + ... + 88293341.

It is an arithmetic number, because the mean of its divisors is an integer number (11124929466).

Almost surely, 244323131431 is an apocalyptic number.

44323131431 is a deficient number, since it is larger than the sum of its proper divisors (176586433).

44323131431 is a wasteful number, since it uses less digits than its factorization.

44323131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176586432.

The product of its digits is 10368, while the sum is 29.

Adding to 44323131431 its reverse (13413132344), we get a palindrome (57736263775).

The spelling of 44323131431 in words is "forty-four billion, three hundred twenty-three million, one hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 251 176586181 44323131431