[go: up one dir, main page]

Search a number
-
+
1108105 = 5221621
BaseRepresentation
bin100001110100010001001
32002022000221
410032202021
5240424410
635430041
712263425
oct4164211
92068027
101108105
11697599
12455321
132ca4ab
1420bb85
1516d4da
hex10e889

1108105 has 4 divisors (see below), whose sum is σ = 1329732. Its totient is φ = 886480.

The previous prime is 1108103. The next prime is 1108123. The reversal of 1108105 is 5018011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5018011 = 5698819.

It can be written as a sum of positive squares in 2 ways, for example, as 501264 + 606841 = 708^2 + 779^2 .

It is not a de Polignac number, because 1108105 - 21 = 1108103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108103) 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, 110806 + ... + 110815.

It is an arithmetic number, because the mean of its divisors is an integer number (332433).

21108105 is an apocalyptic number.

It is an amenable number.

1108105 is a deficient number, since it is larger than the sum of its proper divisors (221627).

1108105 is an equidigital number, since it uses as much as digits as its factorization.

1108105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221626.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1108105 is about 1052.6656639218. The cubic root of 1108105 is about 103.4809256393.

The spelling of 1108105 in words is "one million, one hundred eight thousand, one hundred five".

Divisors: 1 5 221621 1108105