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44471900045 = 581689108881
BaseRepresentation
bin101001011010101110…
…110101011110001101
311020210022201121010002
4221122232311132031
51212034301300140
632232523054045
73133024625156
oct513256653615
9136708647102
1044471900045
1117951256801
128751671325
13426969ab71
14221c48092d
1512543c4415
hexa5abb578d

44471900045 has 8 divisors (see below), whose sum is σ = 53367423480. Its totient is φ = 35576757760.

The previous prime is 44471900021. The next prime is 44471900059. The reversal of 44471900045 is 54000917444.

It can be written as a sum of positive squares in 4 ways, for example, as 17353056361 + 27118843684 = 131731^2 + 164678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44471900045 - 214 = 44471883661 is a prime.

It is a super-2 number, since 2×444719000452 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44471899981 and 44471900008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354005 + ... + 462885.

It is an arithmetic number, because the mean of its divisors is an integer number (6670927935).

Almost surely, 244471900045 is an apocalyptic number.

It is an amenable number.

44471900045 is a deficient number, since it is larger than the sum of its proper divisors (8895523435).

44471900045 is a wasteful number, since it uses less digits than its factorization.

44471900045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190575.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 44471900045 in words is "forty-four billion, four hundred seventy-one million, nine hundred thousand, forty-five".

Divisors: 1 5 81689 108881 408445 544405 8894380009 44471900045