Search a number
-
+
1108811 = 11100801
BaseRepresentation
bin100001110101101001011
32002100000002
410032231023
5240440221
635433215
712265454
oct4165513
92070002
101108811
11698080
1245580b
132ca902
1420c12b
1516d80b
hex10eb4b

1108811 has 4 divisors (see below), whose sum is σ = 1209624. Its totient is φ = 1008000.

The previous prime is 1108801. The next prime is 1108817. The reversal of 1108811 is 1188011.

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

It is a cyclic number.

It is not a de Polignac number, because 1108811 - 26 = 1108747 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50390 + ... + 50411.

It is an arithmetic number, because the mean of its divisors is an integer number (302406).

21108811 is an apocalyptic number.

1108811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1108811 is a deficient number, since it is larger than the sum of its proper divisors (100813).

1108811 is a wasteful number, since it uses less digits than its factorization.

1108811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100812.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 1108811 is about 1053.0009496672. Note that the first 3 decimals coincide. The cubic root of 1108811 is about 103.5028976917.

The spelling of 1108811 in words is "one million, one hundred eight thousand, eight hundred eleven".

Divisors: 1 11 100801 1108811