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11384785 = 52276957
BaseRepresentation
bin101011011011…
…011111010001
3210102101222201
4223123133101
510403303120
61044003201
7165524536
oct53333721
923371881
1011384785
116476615
123990501
132487c79
141724d8d
15eed40a
hexadb7d1

11384785 has 4 divisors (see below), whose sum is σ = 13661748. Its totient is φ = 9107824.

The previous prime is 11384783. The next prime is 11384831. The reversal of 11384785 is 58748311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1354896 + 10029889 = 1164^2 + 3167^2 .

It is a cyclic number.

It is not a de Polignac number, because 11384785 - 21 = 11384783 is a prime.

It is a super-2 number, since 2×113847852 = 259226658992450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11384783) 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, 1138474 + ... + 1138483.

It is an arithmetic number, because the mean of its divisors is an integer number (3415437).

Almost surely, 211384785 is an apocalyptic number.

It is an amenable number.

11384785 is a deficient number, since it is larger than the sum of its proper divisors (2276963).

11384785 is an equidigital number, since it uses as much as digits as its factorization.

11384785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276962.

The product of its digits is 26880, while the sum is 37.

The square root of 11384785 is about 3374.1347038908. The cubic root of 11384785 is about 224.9615407516.

The spelling of 11384785 in words is "eleven million, three hundred eighty-four thousand, seven hundred eighty-five".

Divisors: 1 5 2276957 11384785