1338720768

Names of 1338720768

• Cardinal: 1338720768 can be written as One billion, three hundred thirty-eight million, seven hundred twenty thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.338720768 × 10⁹

Factors of 1338720768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 23

Divisors of 1338720768

• Number of divisors d(n): 450
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 49 56 63 64 66 72 77 84 88 96 98 99 112 121 126 128 132 144 147 154 168 176 192 196 198 224 231 242 252 256 264 288 294 308 336 343 352 363 384 392 396 441 448 462 484 504 512 528 539 576 588 616 672 686 693 704 726 768 784 792 847 882 896 924 968 1008 1029 1056 1078 1089 1152 1176 1232 1344 1372 1386 1408 1452 1536 1568 1584 1617 1694 1764 1792 1848 1936 2016 2058 2112 2156 2178 2304 2352 2401 2464 2541 2688 2744 2772 2816 2904 3087 3136 3168 3234 3388 3528 3584 3696 3773 3872 4032 4116 4224 4312 4356 4608 4704 4802 4851 4928 5082 5376 5488 5544 5632 5808 5929 6174 6272 6336 6468 6776 7056 7203 7392 7546 7623 7744 8064 8232 8448 8624 8712 9408 9604 9702 9856 10164 10752 10976 11088 11319 11616 11858 12348 12544 12672 12936 13552 14112 14406 14784 15092 15246 15488 16128 16464 16896 17248 17424 17787 18816 19208 19404 19712 20328 21609 21952 22176 22638 23232 23716 24696 25088 25344 25872 26411 27104 28224 28812 29568 30184 30492 30976 32256 32928 33957 34496 34848 35574 37632 38416 38808 39424 40656 41503 43218 43904 44352 45276 46464 47432 49392 50688 51744 52822 53361 54208 56448 57624 59136 60368 60984 61952 65856 67914 68992 69696 71148 75264 76832 77616 79233 81312 83006 86436 87808 88704 90552 92928 94864 98784 103488 105644 106722 108416 112896 115248 118272 120736 121968 124509 131712 135828 137984 139392 142296 153664 155232 158466 162624 166012 172872 175616 177408 181104 185856 189728 197568 206976 211288 213444 216832 225792 230496 237699 241472 243936 249018 263424 271656 275968 278784 284592 290521 307328 310464 316932 325248 332024 345744 354816 362208 373527 379456 395136 413952 422576 426888 433664 460992 475398 482944 487872 498036 526848 543312 557568 569184 581042 614656 620928 633864 650496 664048 691488 724416 747054 758912 790272 827904 845152 853776 871563 921984 950796 965888 975744 996072 1086624 1138368 1162084 1229312 1241856 1267728 1300992 1328096 1382976 1448832 1494108 1517824 1580544 1690304 1707552 1743126 1843968 1901592 1931776 1951488 1992144 2173248 2276736 2324168 2483712 2535456 2614689 2656192 2765952 2897664 2988216 3035648 3380608 3415104 3486252 3687936 3803184 3902976 3984288 4346496 4553472 4648336 5070912 5229378 5312384 5531904 5795328 5976432 6761216 6830208 6972504 7606368 7968576 8692992 9106944 9296672 10141824 10458756 10624768 11063808 11952864 13522432 13660416 13945008 15212736 15937152 17385984 18593344 20283648 20917512 21249536 23905728 27320832 27890016 30425472 31874304 37186688 40567296 41835024 47811456 55780032 60850944 63748608 74373376 83670048 95622912 111560064 121701888 148746752 167340096 191245824 223120128 334680192 446240256 669360384 1338720768
• Sum of all divisors σ(n): 4954316367
• Sum of proper divisors (its aliquot sum) s(n): 3615595599
• 1338720768 is an abundant number, because the sum of its proper divisors (3615595599) is greater than itself. Its abundance is 2276874831

Bases of 1338720768

• Binary: 1001111110010110100001000000000₂
• Hexadecimal: 0x4FCB4200
• Base-36: M51FK0

Squares and roots of 1338720768

• 1338720768 squared (1338720768²) is 1792173294674509824
• 1338720768 cubed (1338720768³) is 2399219609435750101608824832
• The square root of 1338720768 is 36588.5332857169
• The cube root of 1338720768 is 1102.1228339487

Scales and comparisons

• 1,338,720,768 seconds is equal to 42 years, 29 weeks, 3 days, 10 hours, 52 minutes, 48 seconds.
• To count from 1 to 1,338,720,768 would take you about eighty-five years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 1338720768 cubic inches would be around 91.8 feet tall.

Recreational maths with 1338720768

• 1338720768 backwards is 8670278331
• The number of decimal digits it has is: 10
• The sum of 1338720768's digits is 45
• More coming soon!