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243214044 = 223181111977
BaseRepresentation
bin11100111111100…
…10011011011100
3121221122112221120
432133302123130
5444230322134
640044530540
76012166563
oct1637623334
9557575846
10243214044
11115319347
1269550a50
133b507a48
1424430bda
1516543649
hexe7f26dc

243214044 has 24 divisors (see below), whose sum is σ = 570639888. Its totient is φ = 80622720.

The previous prime is 243214043. The next prime is 243214051. The reversal of 243214044 is 440412342.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243214043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53817 + ... + 58160.

It is an arithmetic number, because the mean of its divisors is an integer number (23776662).

Almost surely, 2243214044 is an apocalyptic number.

It is an amenable number.

243214044 is an abundant number, since it is smaller than the sum of its proper divisors (327425844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243214044 is a wasteful number, since it uses less digits than its factorization.

243214044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112165 (or 112163 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 243214044 is about 15595.3212214433. The cubic root of 243214044 is about 624.2083151462.

Adding to 243214044 its reverse (440412342), we get a palindrome (683626386).

The spelling of 243214044 in words is "two hundred forty-three million, two hundred fourteen thousand, forty-four".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 111977 223954 335931 447908 671862 1343724 20267837 40535674 60803511 81071348 121607022 243214044