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768442384 = 241931731117
BaseRepresentation
bin101101110011011…
…000000000010000
31222112221220210001
4231303120000100
53033210124014
6204130215344
725020436543
oct5563300020
91875856701
10768442384
11364847156
12195424554
13c3283c48
14740b285a
15476e1974
hex2dcd8010

768442384 has 80 divisors (see below), whose sum is σ = 1641402880. Its totient is φ = 347120640.

The previous prime is 768442361. The next prime is 768442417. The reversal of 768442384 is 483244867.

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 15 ways as a sum of consecutive naturals, for example, 687394 + ... + 688510.

It is an arithmetic number, because the mean of its divisors is an integer number (20517536).

Almost surely, 2768442384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 768442384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820701440).

768442384 is an abundant number, since it is smaller than the sum of its proper divisors (872960496).

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

768442384 is a wasteful number, since it uses less digits than its factorization.

768442384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1242 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 46.

The square root of 768442384 is about 27720.7933508404. The cubic root of 768442384 is about 915.9471947592.

The spelling of 768442384 in words is "seven hundred sixty-eight million, four hundred forty-two thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 19 31 38 62 73 76 124 146 152 248 292 304 496 584 589 1117 1168 1178 1387 2234 2263 2356 2774 4468 4526 4712 5548 8936 9052 9424 11096 17872 18104 21223 22192 34627 36208 42446 42997 69254 81541 84892 85994 138508 163082 169784 171988 277016 326164 339568 343976 554032 652328 657913 687952 1304656 1315826 1549279 2527771 2631652 3098558 5055542 5263304 6197116 10111084 10526608 12394232 20222168 24788464 40444336 48027649 96055298 192110596 384221192 768442384