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11324881 = 531571361
BaseRepresentation
bin101011001100…
…110111010001
3210022100211001
4223030313101
510344344011
61042422001
7165155101
oct53146721
923270731
1011324881
116435607
123961901
132466919
14170b201
15eda7c1
hexaccdd1

11324881 has 8 divisors (see below), whose sum is σ = 11620584. Its totient is φ = 11032320.

The previous prime is 11324861. The next prime is 11324903. The reversal of 11324881 is 18842311.

It can be written as a sum of positive squares in 4 ways, for example, as 540225 + 10784656 = 735^2 + 3284^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11324881 - 223 = 2936273 is a prime.

It is a super-2 number, since 2×113248812 = 256505859328322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11324851) 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 7 ways as a sum of consecutive naturals, for example, 7641 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (1452573).

Almost surely, 211324881 is an apocalyptic number.

It is an amenable number.

11324881 is a deficient number, since it is larger than the sum of its proper divisors (295703).

11324881 is a wasteful number, since it uses less digits than its factorization.

11324881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571.

The product of its digits is 1536, while the sum is 28.

The square root of 11324881 is about 3365.2460534113. The cubic root of 11324881 is about 224.5662821831.

The spelling of 11324881 in words is "eleven million, three hundred twenty-four thousand, eight hundred eighty-one".

Divisors: 1 53 157 1361 8321 72133 213677 11324881