Search a number
-
+
1108575085 = 5221715017
BaseRepresentation
bin100001000010011…
…1000001101101101
32212020222110010111
41002010320031231
54232243400320
6302000340021
736320506222
oct10204701555
92766873114
101108575085
11519841962
1226b314611
13148893ab7
14a7331949
15674cba5a
hex4213836d

1108575085 has 4 divisors (see below), whose sum is σ = 1330290108. Its totient is φ = 886860064.

The previous prime is 1108575079. The next prime is 1108575101. The reversal of 1108575085 is 5805758011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5805758011 = 6003796703.

It can be written as a sum of positive squares in 2 ways, for example, as 233539524 + 875035561 = 15282^2 + 29581^2 .

It is a cyclic number.

It is not a de Polignac number, because 1108575085 - 23 = 1108575077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 110857504 + ... + 110857513.

It is an arithmetic number, because the mean of its divisors is an integer number (332572527).

Almost surely, 21108575085 is an apocalyptic number.

It is an amenable number.

1108575085 is a deficient number, since it is larger than the sum of its proper divisors (221715023).

1108575085 is an equidigital number, since it uses as much as digits as its factorization.

1108575085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221715022.

The product of its (nonzero) digits is 56000, while the sum is 40.

The square root of 1108575085 is about 33295.2712107891. The cubic root of 1108575085 is about 1034.9555660948.

The spelling of 1108575085 in words is "one billion, one hundred eight million, five hundred seventy-five thousand, eighty-five".

Divisors: 1 5 221715017 1108575085