128870555040

Names of 128870555040

• Cardinal: 128870555040 can be written as One hundred twenty-eight billion, eight hundred seventy million, five hundred fifty-five thousand and forty.

Scientific notation

• Scientific notation: 1.2887055504 × 10¹¹

Factors of 128870555040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 6419

Divisors of 128870555040

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 67 71 72 80 90 96 108 120 134 135 142 144 160 180 201 213 216 240 268 270 284 288 335 355 360 402 426 432 480 536 540 568 603 639 670 710 720 804 852 864 1005 1065 1072 1080 1136 1206 1278 1340 1420 1440 1608 1704 1809 1917 2010 2130 2144 2160 2272 2412 2556 2680 2840 3015 3195 3216 3408 3618 3834 4020 4260 4320 4757 4824 5112 5360 5680 6030 6271 6390 6432 6816 7236 7668 8040 8520 9045 9514 9585 9648 10224 10720 11360 12060 12542 12780 14271 14472 15336 16080 17040 18090 18813 19028 19170 19296 20448 23785 24120 25084 25560 28542 28944 30672 31355 32160 34080 36180 37626 38056 38340 42813 47570 48240 50168 51120 56439 57084 57888 61344 62710 71355 72360 75252 76112 76680 85626 94065 95140 96480 100336 102240 112878 114168 125420 128439 142710 144720 150504 152224 153360 169317 171252 188130 190280 200672 214065 225756 228336 250840 256878 282195 285420 289440 301008 306720 338634 342504 376260 380560 420157 428130 445241 451512 456672 501680 513756 564390 570840 602016 642195 677268 685008 752520 761120 840314 846585 856260 890482 903024 1003360 1027512 1128780 1141680 1260471 1284390 1335723 1354536 1370016 1505040 1680628 1693170 1712520 1780964 1806048 2055024 2100785 2226205 2257560 2283360 2520942 2568780 2671446 2709072 3010080 3361256 3386340 3425040 3561928 3781413 4007169 4110048 4201570 4452410 4515120 5041884 5137560 5342892 5418144 6302355 6678615 6722512 6772680 6850080 7123856 7562826 8014338 8403140 8904820 9030240 10083768 10275120 10685784 11344239 12021507 12604710 13357230 13445024 13545360 14247712 15125652 16028676 16806280 17809640 18907065 20035845 20167536 20550240 21371568 22688478 24043014 25209420 26714460 27090720 29831147 30251304 32057352 33612560 35619280 37814130 40071690 40335072 42743136 45376956 48086028 50418840 53428920 56721195 59662294 60107535 60502608 64114704 67225120 71238560 75628260 80143380 89493441 90753912 96172056 100837680 106857840 113442390 119324588 120215070 121005216 128229408 149155735 151256520 160286760 178986882 181507824 192344112 201675360 213715680 226884780 238649176 240430140 268480323 298311470 302513040 320573520 357973764 363015648 384688224 447467205 453769560 477298352 480860280 536960646 596622940 605026080 641147040 715947528 805440969 894934410 907539120 954596704 961720560 1073921292 1193245880 1342401615 1431895056 1610881938 1789868820 1815078240 1923441120 2147842584 2386491760 2684803230 2863790112 3221763876 3579737640 4027204845 4295685168 4772983520 5369606460 6443527752 7159475280 8054409690 8591370336 10739212920 12887055504 14318950560 16108819380 21478425840 25774111008 32217638760 42956851680 64435277520 128870555040
• Sum of all divisors σ(n): 464300605440
• Sum of proper divisors (its aliquot sum) s(n): 335430050400
• 128870555040 is an abundant number, because the sum of its proper divisors (335430050400) is greater than itself. Its abundance is 206559495360

Bases of 128870555040

• Binary: 1111000000001010010001001110110100000₂
• Hexadecimal: 0x1E01489DA0
• Base-36: 1N7A78O0

Squares and roots of 128870555040

• 128870555040 squared (128870555040²) is 16607619956317669401600
• 128870555040 cubed (128870555040³) is 2140233201664038610343416664064000
• The square root of 128870555040 is 358985.4524071971
• The cube root of 128870555040 is 5051.0837139629

Scales and comparisons

• 128,870,555,040 seconds is equal to 4,097 years, 35 weeks, 4 days, 8 hours, 24 minutes.
• To count from 1 to 128,870,555,040 would take you about eight thousand, one hundred ninety-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 128870555040 cubic inches would be around 420.9 feet tall.

Recreational maths with 128870555040

• 128870555040 backwards is 040555078821
• 128870555040 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128870555040's digits is 45
• More coming soon!