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44721212744 = 2313430011661
BaseRepresentation
bin101001101001100101…
…111000110101001000
311021102200211222211202
4221221211320311020
51213042112301434
632313350443332
73142143015305
oct515145706510
9137380758752
1044721212744
1117a69a6005a
128801063548
1342a922c780
14224361c0ac
15126b21ea7e
hexa69978d48

44721212744 has 16 divisors (see below), whose sum is σ = 90302449020. Its totient is φ = 20640559680.

The previous prime is 44721212743. The next prime is 44721212749.

It is a happy number.

44721212744 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 36722056900 + 7999155844 = 191630^2 + 89438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44721212698 and 44721212707.

It is not an unprimeable number, because it can be changed into a prime (44721212743) 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, 215005727 + ... + 215005934.

Almost surely, 244721212744 is an apocalyptic number.

It is an amenable number.

44721212744 is an abundant number, since it is smaller than the sum of its proper divisors (45581236276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44721212744 is a wasteful number, since it uses less digits than its factorization.

44721212744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430011680 (or 430011676 counting only the distinct ones).

The product of its digits is 100352, while the sum is 38.

The spelling of 44721212744 in words is "forty-four billion, seven hundred twenty-one million, two hundred twelve thousand, seven hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 430011661 860023322 1720046644 3440093288 5590151593 11180303186 22360606372 44721212744