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243412144 = 2434943591
BaseRepresentation
bin11101000001000…
…10110010110000
3121222000121200121
432200202302300
5444303142034
640053100024
76013653253
oct1640426260
9558017617
10243412144
11115444168
1269627614
133b576c71
142448309a
15165821b4
hexe822cb0

243412144 has 20 divisors (see below), whose sum is σ = 472973200. Its totient is φ = 121354560.

The previous prime is 243412133. The next prime is 243412163. The reversal of 243412144 is 441214342.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16212 + ... + 27379.

It is an arithmetic number, because the mean of its divisors is an integer number (23648660).

Almost surely, 2243412144 is an apocalyptic number.

It is an amenable number.

243412144 is a deficient number, since it is larger than the sum of its proper divisors (229561056).

243412144 is a wasteful number, since it uses less digits than its factorization.

243412144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43948 (or 43942 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 243412144 is about 15601.6711925358. The cubic root of 243412144 is about 624.3777435607.

Adding to 243412144 its reverse (441214342), we get a palindrome (684626486).

The spelling of 243412144 in words is "two hundred forty-three million, four hundred twelve thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 349 698 1396 2792 5584 43591 87182 174364 348728 697456 15213259 30426518 60853036 121706072 243412144