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244312445 = 5139738749
BaseRepresentation
bin11101000111111…
…10100101111101
3122000201100200002
432203332211331
51000020444240
640124244045
76024423116
oct1643764575
9560640602
10244312445
111159a9613
12699a0625
133b8009a0
142463920d
15166add15
hexe8fe97d

244312445 has 16 divisors (see below), whose sum is σ = 318990000. Its totient is φ = 178550784.

The previous prime is 244312429. The next prime is 244312459. The reversal of 244312445 is 544213442.

It can be written as a sum of positive squares in 8 ways, for example, as 19971961 + 224340484 = 4469^2 + 14978^2 .

It is a cyclic number.

It is not a de Polignac number, because 244312445 - 24 = 244312429 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13070 + ... + 25679.

It is an arithmetic number, because the mean of its divisors is an integer number (19936875).

Almost surely, 2244312445 is an apocalyptic number.

It is an amenable number.

244312445 is a deficient number, since it is larger than the sum of its proper divisors (74677555).

244312445 is a wasteful number, since it uses less digits than its factorization.

244312445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38864.

The product of its digits is 15360, while the sum is 29.

The square root of 244312445 is about 15630.4972729597. The cubic root of 244312445 is about 625.1465853510.

Adding to 244312445 its reverse (544213442), we get a palindrome (788525887).

It can be divided in two parts, 24431 and 2445, that multiplied together give a palindrome (59733795).

The spelling of 244312445 in words is "two hundred forty-four million, three hundred twelve thousand, four hundred forty-five".

Divisors: 1 5 13 65 97 485 1261 6305 38749 193745 503737 2518685 3758653 18793265 48862489 244312445