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11325281 = 111771853
BaseRepresentation
bin101011001100…
…111101100001
3210022101100212
4223030331201
510344402111
61042423505
7165156212
oct53147541
923271325
1011325281
116435940
123961b95
132466b66
14170b409
15eda98b
hexaccf61

11325281 has 16 divisors (see below), whose sum is σ = 13281408. Its totient is φ = 9542400.

The previous prime is 11325277. The next prime is 11325287. The reversal of 11325281 is 18252311.

It is a happy number.

11325281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11325281 - 22 = 11325277 is a prime.

It is a super-2 number, since 2×113252812 = 256523979457922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11325287) 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 15 ways as a sum of consecutive naturals, for example, 12851 + ... + 13703.

It is an arithmetic number, because the mean of its divisors is an integer number (830088).

Almost surely, 211325281 is an apocalyptic number.

11325281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11325281 is a deficient number, since it is larger than the sum of its proper divisors (1956127).

11325281 is a wasteful number, since it uses less digits than its factorization.

11325281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its digits is 480, while the sum is 23.

The square root of 11325281 is about 3365.3054839048. The cubic root of 11325281 is about 224.5689260801.

Adding to 11325281 its reverse (18252311), we get a palindrome (29577592).

The spelling of 11325281 in words is "eleven million, three hundred twenty-five thousand, two hundred eighty-one".

Divisors: 1 11 17 71 187 781 853 1207 9383 13277 14501 60563 159511 666193 1029571 11325281