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51203143636112 = 2413246168959789
BaseRepresentation
bin10111010010001101010010…
…01100000001010010010000
320201021222021010011122011102
423221012221030001102100
523202403014232323422
6300522222141003532
713533206426533046
oct1351065114012220
9221258233148142
1051203143636112
11153511497a0556
1258ab6192535a8
1322755883a35a0
14c90361448396
155dbda0813192
hex2e91a9301490

51203143636112 has 20 divisors (see below), whose sum is σ = 106837328548860. Its totient is φ = 23632220139648.

The previous prime is 51203143636109. The next prime is 51203143636171. The reversal of 51203143636112 is 21163634130215.

It can be written as a sum of positive squares in 2 ways, for example, as 35116338217216 + 16086805418896 = 5925904^2 + 4010836^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123084479687 + ... + 123084480102.

It is an arithmetic number, because the mean of its divisors is an integer number (5341866427443).

Almost surely, 251203143636112 is an apocalyptic number.

51203143636112 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51203143636112 is an abundant number, since it is smaller than the sum of its proper divisors (55634184912748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51203143636112 is a wasteful number, since it uses less digits than its factorization.

51203143636112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246168959810 (or 246168959804 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 51203143636112 its reverse (21163634130215), we get a palindrome (72366777766327).

The spelling of 51203143636112 in words is "fifty-one trillion, two hundred three billion, one hundred forty-three million, six hundred thirty-six thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 246168959789 492337919578 984675839156 1969351678312 3200196477257 3938703356624 6400392954514 12800785909028 25601571818056 51203143636112