Search a number
-
+
11080231 = 12319001
BaseRepresentation
bin101010010001…
…001000100111
3202211221012221
4222101020213
510314031411
61033253211
7163115611
oct52211047
922757187
1011080231
116288818
123864207
1323ac466
141685db1
15e8d071
hexa91227

11080231 has 4 divisors (see below), whose sum is σ = 11090464. Its totient is φ = 11070000.

The previous prime is 11080217. The next prime is 11080247. The reversal of 11080231 is 13208011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13208011 = 127710343.

It is a cyclic number.

It is not a de Polignac number, because 11080231 - 219 = 10555943 is a prime.

It is a super-2 number, since 2×110802312 = 245543038026722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11080261) 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, 3270 + ... + 5731.

It is an arithmetic number, because the mean of its divisors is an integer number (2772616).

Almost surely, 211080231 is an apocalyptic number.

11080231 is a deficient number, since it is larger than the sum of its proper divisors (10233).

11080231 is an equidigital number, since it uses as much as digits as its factorization.

11080231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 11080231 is about 3328.6980938499. The cubic root of 11080231 is about 222.9374032514.

Adding to 11080231 its reverse (13208011), we get a palindrome (24288242).

It can be divided in two parts, 11080 and 231, that added together give a palindrome (11311).

The spelling of 11080231 in words is "eleven million, eighty thousand, two hundred thirty-one".

Divisors: 1 1231 9001 11080231