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44444448888889 = 729523812
BaseRepresentation
bin10100001101100000001111…
…00101101001100000111001
312211100211220001121120222111
422012300013211221200321
521311134212403421024
6234305255320252321
712235001606216200
oct1206600745514071
9184324801546874
1044444448888889
111318586a808155
124b997700110a1
131ba512a6a34ca
14ad91a0d8c237
1552117e94ba94
hex286c07969839

44444448888889 has 9 divisors (see below), whose sum is σ = 51700739727951. Its totient is φ = 38095201904760.

The previous prime is 44444448888887. The next prime is 44444448888899. The reversal of 44444448888889 is 98888884444444.

The square root of 44444448888889 is 6666667.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4759740712489 + 39684708176400 = 2181683^2 + 6299580^2 .

It is not a de Polignac number, because 44444448888889 - 21 = 44444448888887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (44444448888887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46190479 + ... + 47142859.

It is an arithmetic number, because the mean of its divisors is an integer number (5744526636439).

Almost surely, 244444448888889 is an apocalyptic number.

44444448888889 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

44444448888889 is the 6666667-th square number.

44444448888889 is the 3333334-th centered octagonal number.

It is an amenable number.

44444448888889 is a deficient number, since it is larger than the sum of its proper divisors (7256290839062).

44444448888889 is an frugal number, since it uses more digits than its factorization.

44444448888889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904776 (or 952388 counting only the distinct ones).

The product of its digits is 38654705664, while the sum is 85.

The spelling of 44444448888889 in words is "forty-four trillion, four hundred forty-four billion, four hundred forty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".