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12241144 = 231530143
BaseRepresentation
bin101110101100…
…100011111000
3212000220200201
4232230203320
511113204034
61114211544
7206022316
oct56544370
925026621
1012241144
116a00a53
124123bb4
1326c79a6
1418a90b6
15111c014
hexbac8f8

12241144 has 8 divisors (see below), whose sum is σ = 22952160. Its totient is φ = 6120568.

The previous prime is 12241127. The next prime is 12241147. The reversal of 12241144 is 44114221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12241147) 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 as a sum of consecutive naturals, namely, 765064 + ... + 765079.

It is an arithmetic number, because the mean of its divisors is an integer number (2869020).

Almost surely, 212241144 is an apocalyptic number.

It is an amenable number.

12241144 is a deficient number, since it is larger than the sum of its proper divisors (10711016).

12241144 is a wasteful number, since it uses less digits than its factorization.

12241144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530149 (or 1530145 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 12241144 is about 3498.7346284050. The cubic root of 12241144 is about 230.4662501581.

Adding to 12241144 its reverse (44114221), we get a palindrome (56355365).

The spelling of 12241144 in words is "twelve million, two hundred forty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 1530143 3060286 6120572 12241144