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11813604055037 = 20295822377553
BaseRepresentation
bin1010101111101001000110…
…1011000101011111111101
31112211100222101020000111022
42223322101223011133331
53022023230114230122
641043032250033525
72326335056431361
oct253722153053775
945740871200438
1011813604055037
1138451375665a4
1213a96801188a5
1367903095a925
142cbad25872a1
15157473e6c642
hexabe91ac57fd

11813604055037 has 4 divisors (see below), whose sum is σ = 11819426434620. Its totient is φ = 11807781675456.

The previous prime is 11813604055027. The next prime is 11813604055069. The reversal of 11813604055037 is 73055040631811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10204121083321 + 1609482971716 = 3194389^2 + 1268654^2 .

It is a cyclic number.

It is not a de Polignac number, because 11813604055037 - 210 = 11813604054013 is a prime.

It is a super-2 number, since 2×118136040550372 (a number of 27 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 (11813604055027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2911186748 + ... + 2911190805.

It is an arithmetic number, because the mean of its divisors is an integer number (2954856608655).

Almost surely, 211813604055037 is an apocalyptic number.

It is an amenable number.

11813604055037 is a deficient number, since it is larger than the sum of its proper divisors (5822379583).

11813604055037 is an equidigital number, since it uses as much as digits as its factorization.

11813604055037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822379582.

The product of its (nonzero) digits is 302400, while the sum is 44.

Adding to 11813604055037 its reverse (73055040631811), we get a palindrome (84868644686848).

The spelling of 11813604055037 in words is "eleven trillion, eight hundred thirteen billion, six hundred four million, fifty-five thousand, thirty-seven".

Divisors: 1 2029 5822377553 11813604055037