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243442912 = 2541185551
BaseRepresentation
bin11101000001010…
…10010011100000
3121222002011220011
432200222103200
5444310133122
640053454304
76014142046
oct1640522340
9558064804
10243442912
11115465299
1269641394
133b587c7b
1424490396
151658b377
hexe82a4e0

243442912 has 24 divisors (see below), whose sum is σ = 490970592. Its totient is φ = 118752000.

The previous prime is 243442891. The next prime is 243442919. The reversal of 243442912 is 219244342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243442919) by changing a digit.

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, 91464 + ... + 94087.

It is an arithmetic number, because the mean of its divisors is an integer number (20457108).

Almost surely, 2243442912 is an apocalyptic number.

It is an amenable number.

243442912 is an abundant number, since it is smaller than the sum of its proper divisors (247527680).

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

243442912 is a wasteful number, since it uses less digits than its factorization.

243442912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185602 (or 185594 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 243442912 is about 15602.6572095909. The cubic root of 243442912 is about 624.4040501707.

The spelling of 243442912 in words is "two hundred forty-three million, four hundred forty-two thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 32 41 82 164 328 656 1312 185551 371102 742204 1484408 2968816 5937632 7607591 15215182 30430364 60860728 121721456 243442912