Search a number
-
+
11488081 = 111044371
BaseRepresentation
bin101011110100…
…101101010001
3210121122200111
4223310231101
510420104311
61050121321
7166434643
oct53645521
923548614
1011488081
116537190
123a20241
1324c2ca7
141750893
15101dd21
hexaf4b51

11488081 has 4 divisors (see below), whose sum is σ = 12532464. Its totient is φ = 10443700.

The previous prime is 11488079. The next prime is 11488111. The reversal of 11488081 is 18088411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11488081 - 21 = 11488079 is a prime.

It is a super-2 number, since 2×114880812 = 263952010125122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11488051) 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, 522175 + ... + 522196.

It is an arithmetic number, because the mean of its divisors is an integer number (3133116).

Almost surely, 211488081 is an apocalyptic number.

11488081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11488081 is a deficient number, since it is larger than the sum of its proper divisors (1044383).

11488081 is a wasteful number, since it uses less digits than its factorization.

11488081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044382.

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 11488081 is about 3389.4071753037. The cubic root of 11488081 is about 225.6398641998.

It can be divided in two parts, 1148 and 8081, that added together give a palindrome (9229).

The spelling of 11488081 in words is "eleven million, four hundred eighty-eight thousand, eighty-one".

Divisors: 1 11 1044371 11488081