638968950144

Names of 638968950144

• Cardinal: 638968950144 can be written as Six hundred thirty-eight billion, nine hundred sixty-eight million, nine hundred fifty thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 6.38968950144 × 10¹¹

Factors of 638968950144

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 221982

Divisors of 638968950144

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 27 28 32 34 36 42 48 49 51 54 56 63 64 68 72 84 96 98 102 108 112 119 126 128 136 144 147 153 168 189 192 196 204 216 224 238 252 272 288 294 306 336 357 378 384 392 408 432 441 448 459 476 504 544 576 588 612 672 714 756 784 816 833 864 882 896 918 952 1008 1071 1088 1152 1176 1224 1323 1344 1428 1512 1568 1632 1666 1728 1764 1836 1904 2016 2142 2176 2352 2448 2499 2646 2688 2856 3024 3136 3213 3264 3332 3456 3528 3672 3808 4032 4284 4704 4896 4998 5292 5712 6048 6272 6426 6528 6664 7056 7344 7497 7616 8064 8568 9408 9792 9996 10584 11424 12096 12852 13328 14112 14688 14994 15232 17136 18816 19584 19992 21168 22491 22848 24192 25704 26656 28224 29376 29988 34272 39984 42336 44982 45696 51408 53312 56448 58752 59976 68544 79968 84672 89964 102816 106624 119952 137088 159936 169344 179928 205632 221953 239904 319872 359856 411264 443906 479808 665859 719712 887812 959616 1331718 1439424 1553671 1775624 1997577 2663436 2878848 3107342 3551248 3773201 3995154 4661013 5326872 5992731 6214684 7102496 7546402 7990308 9322026 10653744 10875697 11319603 11985462 12429368 13983039 14204992 15092804 15980616 18644052 21307488 21751394 22639206 23970924 24858736 26412407 27966078 28409984 30185608 31961232 32627091 33958809 37288104 41949117 42614976 43502788 45278412 47941848 49717472 52824814 55932156 60371216 63922464 65254182 67917618 74576208 79237221 83898234 85229952 87005576 90556824 95883696 97881273 99434944 101876427 105649628 111864312 120742432 127844928 130508364 135835236 149152416 158474442 167796468 174011152 181113648 184886849 191767392 195762546 198869888 203752854 211299256 223728624 237711663 241484864 255689856 261016728 271670472 293643819 298304832 316948884 335592936 348022304 362227296 369773698 383534784 391525092 407505708 422598512 447457248 475423326 482969728 522033456 543340944 554660547 587287638 596609664 633897768 671185872 696044608 713134989 724454592 739547396 767069568 783050184 815011416 845197024 894914496 950846652 1044066912 1086681888 1109321094 1174575276 1267795536 1342371744 1392089216 1426269978 1448909184 1479094792 1566100368 1630022832 1663981641 1690394048 1789828992 1901693304 2088133824 2173363776 2218642188 2349150552 2535591072 2684743488 2852539956 2958189584 3132200736 3260045664 3327963282 3380788096 3803386608 4176267648 4346727552 4437284376 4698301104 4991944923 5071182144 5369486976 5705079912 5916379168 6264401472 6520091328 6655926564 7606773216 8874568752 9396602208 9983889846 10142364288 11410159824 11832758336 12528802944 13040182656 13311853128 15213546432 17749137504 18793204416 19967779692 22820319648 23665516672 26623706256 30427092864 35498275008 37586408832 39935559384 45640639296 53247412512 70996550016 79871118768 91281278592 106494825024 159742237536 212989650048 319484475072 638968950144
• Sum of all divisors σ(n): 2322793000800
• Sum of proper divisors (its aliquot sum) s(n): 1683824050656
• 638968950144 is an abundant number, because the sum of its proper divisors (1683824050656) is greater than itself. Its abundance is 1044855100512

Bases of 638968950144

• Binary: 1001010011000101100001000110110110000000₂
• Hexadecimal: 0x94C5846D80
• Base-36: 85JDM5C0

Squares and roots of 638968950144

• 638968950144 squared (638968950144²) is 408281319248125557620736
• 638968950144 cubed (638968950144³) is 260879085923382086992816260444585984
• The square root of 638968950144 is 799355.3340936683
• The cube root of 638968950144 is 8613.1085028129

Scales and comparisons

• 638,968,950,144 seconds is equal to 20,317 years, 12 weeks, 1 day, 23 hours, 2 minutes, 24 seconds.
• To count from 1 to 638,968,950,144 would take you about forty thousand, six hundred thirty-four 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 638968950144 cubic inches would be around 717.8 feet tall.

Recreational maths with 638968950144

• 638968950144 backwards is 441059869836
• 638968950144 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 638968950144's digits is 63
• More coming soon!