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11192911 = 53211187
BaseRepresentation
bin101010101100…
…101001001111
3210001122210021
4222230221033
510331133121
61035523011
7164065252
oct52545117
923048707
1011192911
116355444
1238b9467
13241b832
1416b5099
15eb1641
hexaaca4f

11192911 has 4 divisors (see below), whose sum is σ = 11404152. Its totient is φ = 10981672.

The previous prime is 11192897. The next prime is 11192939. The reversal of 11192911 is 11929111.

11192911 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11929111 = 23518657.

It is a cyclic number.

It is not a de Polignac number, because 11192911 - 211 = 11190863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11192971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105541 + ... + 105646.

It is an arithmetic number, because the mean of its divisors is an integer number (2851038).

Almost surely, 211192911 is an apocalyptic number.

11192911 is a deficient number, since it is larger than the sum of its proper divisors (211241).

11192911 is an equidigital number, since it uses as much as digits as its factorization.

11192911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211240.

The product of its digits is 162, while the sum is 25.

The square root of 11192911 is about 3345.5808165399. The cubic root of 11192911 is about 223.6905737754.

The spelling of 11192911 in words is "eleven million, one hundred ninety-two thousand, nine hundred eleven".

Divisors: 1 53 211187 11192911