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11128811239 = 713122294629
BaseRepresentation
bin10100101110101010…
…00010111011100111
31001201120211012001001
422113111002323213
5140242433424424
65040145014131
7542532222550
oct122725027347
931646735031
1011128811239
1147a0a18667
1221a7024347
131084818010
14778041327
15452035844
hex297542ee7

11128811239 has 8 divisors (see below), whose sum is σ = 13696998560. Its totient is φ = 8805213216.

The previous prime is 11128811231. The next prime is 11128811311. The reversal of 11128811239 is 93211882111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11128811239 - 23 = 11128811231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11128811198 and 11128811207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11128811231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61147224 + ... + 61147405.

It is an arithmetic number, because the mean of its divisors is an integer number (1712124820).

Almost surely, 211128811239 is an apocalyptic number.

11128811239 is a deficient number, since it is larger than the sum of its proper divisors (2568187321).

11128811239 is a wasteful number, since it uses less digits than its factorization.

11128811239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122294649.

The product of its digits is 6912, while the sum is 37.

The spelling of 11128811239 in words is "eleven billion, one hundred twenty-eight million, eight hundred eleven thousand, two hundred thirty-nine".

Divisors: 1 7 13 91 122294629 856062403 1589830177 11128811239