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243934704 = 243213130307
BaseRepresentation
bin11101000101000…
…10010111110000
3122000000011111200
432202202113300
5444421402304
640112211200
76021260616
oct1642422760
9560004450
10243934704
11115770832
1269839b00
133b6caa80
142457b6b6
1516636e39
hexe8a25f0

243934704 has 60 divisors (see below), whose sum is σ = 735197736. Its totient is φ = 75056256.

The previous prime is 243934703. The next prime is 243934721. The reversal of 243934704 is 407439342.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243934703) 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 in 11 ways as a sum of consecutive naturals, for example, 63282 + ... + 67025.

Almost surely, 2243934704 is an apocalyptic number.

243934704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243934704 is an abundant number, since it is smaller than the sum of its proper divisors (491263032).

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

243934704 is a wasteful number, since it uses less digits than its factorization.

243934704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130334 (or 130325 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 243934704 is about 15618.4091379372. The cubic root of 243934704 is about 624.8242313199.

The spelling of 243934704 in words is "two hundred forty-three million, nine hundred thirty-four thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 130307 260614 390921 521228 781842 1042456 1172763 1563684 1693991 2084912 2345526 3127368 3387982 4691052 5081973 6254736 6775964 9382104 10163946 13551928 15245919 18764208 20327892 27103856 30491838 40655784 60983676 81311568 121967352 243934704