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444023411421 = 343103311107453
BaseRepresentation
bin1100111011000011101…
…10111001001011011101
31120110002202101101101010
412131201312321023131
524233324443131141
6535552002405433
744036212503162
oct6354166711335
91513082341333
10444023411421
11161344704a47
127207a660879
1332b4311b405
14176c2c5a069
15b83b72c416
hex6761db92dd

444023411421 has 32 divisors (see below), whose sum is σ = 613653460992. Its totient is φ = 285401108160.

The previous prime is 444023411401. The next prime is 444023411437. The reversal of 444023411421 is 124114320444.

It is a happy number.

It is not a de Polignac number, because 444023411421 - 26 = 444023411357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444023411401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4078531 + ... + 4185983.

It is an arithmetic number, because the mean of its divisors is an integer number (19176670656).

Almost surely, 2444023411421 is an apocalyptic number.

It is an amenable number.

444023411421 is a deficient number, since it is larger than the sum of its proper divisors (169630049571).

444023411421 is a wasteful number, since it uses less digits than its factorization.

444023411421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107913.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 444023411421 its reverse (124114320444), we get a palindrome (568137731865).

The spelling of 444023411421 in words is "four hundred forty-four billion, twenty-three million, four hundred eleven thousand, four hundred twenty-one".

Divisors: 1 3 43 103 129 309 311 933 4429 13287 13373 32033 40119 96099 107453 322359 1377419 4132257 4620479 11067659 13861437 33202977 33417883 100253649 475909337 1427728011 1436968969 3442041949 4310906907 10326125847 148007803807 444023411421