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51440460308571 = 3109349450745777
BaseRepresentation
bin10111011001000111010100…
…10111010010000001011011
320202010122211010100200202210
423230203222113102001123
523220300030314333241
6301223230552530203
713556310363134355
oct1354435227220133
9222118733320683
1051440460308571
111543285a881024
12592960a0b0963
132291a78878229
14c9ba355a40d5
155e313edce316
hex2ec8ea5d205b

51440460308571 has 16 divisors (see below), whose sum is σ = 69414849812000. Its totient is φ = 33881658490368.

The previous prime is 51440460308557. The next prime is 51440460308647. The reversal of 51440460308571 is 17580306404415.

51440460308571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51440460308571 - 215 = 51440460275803 is a prime.

It is a super-2 number, since 2×514404603085712 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51440460308571.

It is not an unprimeable number, because it can be changed into a prime (51440460308551) 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 15 ways as a sum of consecutive naturals, for example, 225258766 + ... + 225487011.

It is an arithmetic number, because the mean of its divisors is an integer number (4338428113250).

Almost surely, 251440460308571 is an apocalyptic number.

51440460308571 is a deficient number, since it is larger than the sum of its proper divisors (17974389503429).

51440460308571 is a wasteful number, since it uses less digits than its factorization.

51440460308571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450746238.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 51440460308571 in words is "fifty-one trillion, four hundred forty billion, four hundred sixty million, three hundred eight thousand, five hundred seventy-one".

Divisors: 1 3 109 327 349 1047 38041 114123 450745777 1352237331 49131289693 147393869079 157310276173 471930828519 17146820102857 51440460308571