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68433456 = 24371315667
BaseRepresentation
bin1000001010000…
…11011000110000
311202202210001110
410011003120300
5120004332311
610442433320
71460450310
oct405033060
9152683043
1068433456
11356a1083
121ab02840
1311240790
149135440
15601b8a6
hex4143630

68433456 has 80 divisors (see below), whose sum is σ = 217597184. Its totient is φ = 18047232.

The previous prime is 68433433. The next prime is 68433467. The reversal of 68433456 is 65433486.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3466 + ... + 12201.

Almost surely, 268433456 is an apocalyptic number.

It is an amenable number.

68433456 is an abundant number, since it is smaller than the sum of its proper divisors (149163728).

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

68433456 is a wasteful number, since it uses less digits than its factorization.

68433456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15698 (or 15692 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 68433456 is about 8272.4516317716. The cubic root of 68433456 is about 409.0309376151.

The spelling of 68433456 in words is "sixty-eight million, four hundred thirty-three thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 52 56 78 84 91 104 112 156 168 182 208 273 312 336 364 546 624 728 1092 1456 2184 4368 15667 31334 47001 62668 94002 109669 125336 188004 203671 219338 250672 329007 376008 407342 438676 611013 658014 752016 814684 877352 1222026 1316028 1425697 1629368 1754704 2444052 2632056 2851394 3258736 4277091 4888104 5264112 5702788 8554182 9776208 11405576 17108364 22811152 34216728 68433456