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12038838877 = 13297734389
BaseRepresentation
bin10110011011001001…
…00001101001011101
31011002000012101021101
423031210201221131
5144123420321002
65310334033101
7604222304422
oct131544415135
934060171241
1012038838877
11511867991a
1223bb948791
13119b212a00
14822c4bd49
154a6d93587
hex2cd921a5d

12038838877 has 12 divisors (see below), whose sum is σ = 13170550260. Its totient is φ = 10998194688.

The previous prime is 12038838853. The next prime is 12038838887. The reversal of 12038838877 is 77883883021.

12038838877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 99780121 + 11939058756 = 9989^2 + 109266^2 .

It is not a de Polignac number, because 12038838877 - 227 = 11904621149 is a prime.

It is a super-2 number, since 2×120388388772 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12038838887) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 350802 + ... + 383587.

It is an arithmetic number, because the mean of its divisors is an integer number (1097545855).

Almost surely, 212038838877 is an apocalyptic number.

It is an amenable number.

12038838877 is a deficient number, since it is larger than the sum of its proper divisors (1131711383).

12038838877 is an equidigital number, since it uses as much as digits as its factorization.

12038838877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734512 (or 734499 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 55.

The spelling of 12038838877 in words is "twelve billion, thirty-eight million, eight hundred thirty-eight thousand, eight hundred seventy-seven".

Divisors: 1 13 97 169 1261 16393 734389 9547057 71235733 124111741 926064529 12038838877