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11225081 = 723113617
BaseRepresentation
bin101010110100…
…011111111001
3210010021220202
4222310133321
510333200311
61040331545
7164261120
oct52643771
923107822
1011225081
11637762a
123913bb5
13243037a
1416c2ab7
15ebae3b
hexab47f9

11225081 has 16 divisors (see below), whose sum is σ = 13526784. Its totient is φ = 9106944.

The previous prime is 11225063. The next prime is 11225087. The reversal of 11225081 is 18052211.

It is a happy number.

It is not a de Polignac number, because 11225081 - 26 = 11225017 is a prime.

It is a super-2 number, since 2×112250812 = 252004886913122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11225087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17885 + ... + 18501.

It is an arithmetic number, because the mean of its divisors is an integer number (845424).

Almost surely, 211225081 is an apocalyptic number.

It is an amenable number.

11225081 is a deficient number, since it is larger than the sum of its proper divisors (2301703).

11225081 is a wasteful number, since it uses less digits than its factorization.

11225081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 11225081 is about 3350.3852017343. The cubic root of 11225081 is about 223.9046748411.

Adding to 11225081 its reverse (18052211), we get a palindrome (29277292).

The spelling of 11225081 in words is "eleven million, two hundred twenty-five thousand, eighty-one".

Divisors: 1 7 23 113 161 617 791 2599 4319 14191 18193 69721 99337 488047 1603583 11225081