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445230814819 = 73113731494359
BaseRepresentation
bin1100111101010011101…
…00110001011001100011
31120120012220022211110111
412132221310301121203
524243313042033234
6540311453312151
744111143324540
oct6365164613143
91516186284414
10445230814819
11161904207a9a
1272356a95657
1332ca63055ab
1417799355bc7
15b8ac72b664
hex67a9d31663

445230814819 has 16 divisors (see below), whose sum is σ = 525632163840. Its totient is φ = 369046651680.

The previous prime is 445230814711. The next prime is 445230814841. The reversal of 445230814819 is 918418032544.

It is a de Polignac number, because none of the positive numbers 2k-445230814819 is a prime.

It is a super-2 number, since 2×4452308148192 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (445230814849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449239 + ... + 1045120.

It is an arithmetic number, because the mean of its divisors is an integer number (32852010240).

Almost surely, 2445230814819 is an apocalyptic number.

445230814819 is a deficient number, since it is larger than the sum of its proper divisors (80401349021).

445230814819 is a wasteful number, since it uses less digits than its factorization.

445230814819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495770.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 445230814819 in words is "four hundred forty-five billion, two hundred thirty million, eight hundred fourteen thousand, eight hundred nineteen".

Divisors: 1 7 31 217 1373 9611 42563 297941 1494359 10460513 46325129 324275903 2051754907 14362284349 63604402117 445230814819