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11844145 = 52368829
BaseRepresentation
bin101101001011…
…101000110001
3211021202010001
4231023220301
511013003040
61101510001
7202450015
oct55135061
924252101
1011844145
11675a755
123b72301
1325b9091
141804545
15108e59a
hexb4ba31

11844145 has 4 divisors (see below), whose sum is σ = 14212980. Its totient is φ = 9475312.

The previous prime is 11844143. The next prime is 11844197. The reversal of 11844145 is 54144811.

11844145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54144811 = 77734973.

It can be written as a sum of positive squares in 2 ways, for example, as 4704561 + 7139584 = 2169^2 + 2672^2 .

It is a cyclic number.

It is not a de Polignac number, because 11844145 - 21 = 11844143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11844143) 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, 1184410 + ... + 1184419.

It is an arithmetic number, because the mean of its divisors is an integer number (3553245).

Almost surely, 211844145 is an apocalyptic number.

It is an amenable number.

11844145 is a deficient number, since it is larger than the sum of its proper divisors (2368835).

11844145 is an equidigital number, since it uses as much as digits as its factorization.

11844145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368834.

The product of its digits is 2560, while the sum is 28.

The square root of 11844145 is about 3441.5323621898. The cubic root of 11844145 is about 227.9473626821.

Adding to 11844145 its reverse (54144811), we get a palindrome (65988956).

It can be divided in two parts, 1184 and 4145, that added together give a square (5329 = 732).

The spelling of 11844145 in words is "eleven million, eight hundred forty-four thousand, one hundred forty-five".

Divisors: 1 5 2368829 11844145