128021670920

Names of 128021670920

• Cardinal: 128021670920 can be written as One hundred twenty-eight billion, twenty-one million, six hundred seventy thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.2802167092 × 10¹¹

Factors of 128021670920

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 197

Divisors of 128021670920

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 8 10 11 13 19 20 22 26 31 37 38 40 44 52 55 62 65 74 76 79 88 95 104 110 124 130 143 148 152 155 158 169 185 190 209 220 247 248 260 286 296 310 316 338 341 370 380 395 403 407 418 440 481 494 520 572 589 620 632 676 682 703 715 740 760 790 806 814 836 845 869 962 988 1027 1045 1144 1147 1178 1235 1240 1352 1364 1406 1430 1480 1501 1580 1612 1628 1672 1690 1705 1738 1859 1924 1976 2015 2035 2054 2090 2294 2356 2405 2449 2470 2717 2728 2812 2860 2923 2945 3002 3160 3211 3224 3256 3380 3410 3476 3515 3718 3848 4030 4070 4108 4180 4345 4433 4588 4712 4810 4898 4940 5135 5239 5291 5434 5624 5720 5735 5846 5890 6004 6253 6422 6479 6760 6820 6952 7030 7436 7505 7657 7733 8060 8140 8216 8360 8690 8866 9139 9176 9295 9620 9796 9880 10270 10478 10582 10868 11297 11470 11692 11780 12008 12245 12506 12617 12844 12958 13351 13585 13640 14060 14615 14872 14911 15010 15314 15466 16055 16120 16280 16511 17380 17732 18278 18590 19240 19513 19592 20540 20956 21164 21736 21793 22165 22594 22940 23384 23560 24490 25012 25234 25688 25916 26195 26455 26702 26939 27170 28120 29230 29822 30020 30628 30932 31265 31837 32110 32153 32395 33022 34760 35321 35464 36556 37180 37999 38285 38665 39026 41080 41912 42328 43586 44330 45188 45695 45880 46531 48980 50024 50468 51832 52390 52910 53404 53878 54340 55537 56485 57629 58460 59644 60040 61256 61864 62530 63085 63674 64220 64306 64790 66044 66755 68783 70642 73112 74360 74555 75998 76570 77330 78052 82555 84227 87172 88660 90376 90613 91390 93062 97565 97960 99541 100529 100936 104780 105820 106808 107756 108680 108965 111074 112970 115258 116920 118807 119288 125060 126170 127348 128440 128612 129580 132088 133510 134695 137566 141284 146861 149110 151996 153140 154660 156104 159185 160765 164021 165110 168454 174344 176605 177320 181226 182780 186124 189995 193843 195130 199082 201058 209560 211640 214643 215512 217930 222148 225940 230516 232655 237614 239723 250120 252340 253669 254696 257224 259160 267020 269390 275132 277685 282568 283309 288145 293722 298220 303992 306280 309320 318370 321530 328042 330220 336908 343915 350207 353210 362452 365560 372248 379990 387686 390260 398164 402116 413881 417989 421135 429286 435860 444296 451880 453065 461032 465310 475228 479446 493987 497705 502645 504680 507338 511841 534040 538780 550264 555370 566618 576290 587444 594035 596440 604903 610907 636740 643060 656084 660440 673816 687830 700414 706420 721981 724904 734305 759980 775372 780520 796328 804232 820105 827762 835978 842270 858572 871720 906130 930620 950456 958892 969215 987974 995410 996743 1005290 1014676 1023682 1073215 1077560 1094951 1110740 1133236 1152580 1174888 1177969 1188070 1198615 1209806 1221814 1268345 1273480 1286120 1306877 1312168 1375660 1400828 1412840 1416545 1443962 1468610 1519960 1550744 1640210 1655524 1671956 1684540 1717144 1721647 1751035 1812260 1861240 1917784 1938430 1975948 1990820 1993486 2010580 2029352 2047364 2069405 2089945 2132273 2146430 2189902 2221480 2266472 2305160 2355938 2376140 2397230 2419612 2443628 2469935 2536690 2559205 2613754 2751320 2790359 2801656 2833090 2887924 2937220 3024515 3054535 3116399 3280420 3311048 3343912 3369080 3443294 3502070 3609905 3624520 3683017 3876860 3951896 3981640 3986972 4021160 4094728 4138810 4179890 4264546 4292860 4379804 4552691 4711876 4752280 4794460 4839224 4887256 4939870 4983715 5073380 5118410 5227508 5433857 5474755 5580718 5666180 5775848 5874440 5889845 6049030 6109070 6232798 6534385 6560840 6653933 6886588 7004140 7219810 7366034 7753720 7863739 7941791 7973944 8277620 8359780 8529092 8585720 8608235 8759608 9105382 9385753 9423752 9588920 9879740 9967430 10146760 10236820 10455016 10661365 10867714 10949510 11161436 11332360 11779690 12098060 12218140 12465596 12957659 13068770 13307866 13773176 13951795 14008280 14439620 14732068 15313597 15581995 15727478 15883582 16555240 16719560 17058184 17216470 18210764 18415085 18771506 18938117 19759480 19934860 20473640 21322730 21735428 21899020 22322872 22381411 22763455 23559380 24196120 24436280 24931192 25915318 26137540 26615732 27169285 27903590 28879240 29464136 30627194 31163990 31454956 31767164 33269665 34432940 36421528 36830170 37543012 37876234 39318695 39708955 39869720 40513187 42645460 43470856 43798040 44762822 45526910 46928765 47118760 51830636 52275080 53231464 54338570 55807180 61254388 62327980 62909912 63534328 64788295 66539330 68865880 73660340 75086024 75752468 76567985 78637390 79417910 81026374 85290920 86501129 89525644 91053820 93857530 94690585 103243283 103661272 108677140 111614360 111907055 122508776 124655960 129576590 133078660 147320680 151504936 153135970 157274780 158835820 162052748 168449567 173002258 179051288 182107640 187715060 189381170 202565935 206486566 217354280 223814110 246195521 259153180 266157320 290958343 306271940 314549560 317671640 324105496 336899134 346004516 375430120 378762340 405131870 412973132 432505645 447628220 492391042 516216415 518306360 581916686 612543880 673798268 692009032 757524680 810263740 825946264 842247835 865011290 895256440 984782084 1032432830 1163833372 1230977605 1347596536 1454791715 1620527480 1684495670 1730022580 1969564168 2064865660 2327666744 2461955210 2909583430 3200541773 3368991340 3460045160 4129731320 4923910420 5819166860 6401083546 6737982680 9847820840 11638333720 12802167092 16002708865 25604334184 32005417730 64010835460 128021670920
• Sum of all divisors σ(n): 384528384000
• Sum of proper divisors (its aliquot sum) s(n): 256506713080
• 128021670920 is an abundant number, because the sum of its proper divisors (256506713080) is greater than itself. Its abundance is 128485042160

Bases of 128021670920

• Binary: 1110111001110101011111010110000001000₂
• Hexadecimal: 0x1DCEAFAC08
• Base-36: 1MT8SPHK

Squares and roots of 128021670920

• 128021670920 squared (128021670920²) is 16389548225148773646400
• 128021670920 cubed (128021670920³) is 2098217349407466367800989242688000
• The square root of 128021670920 is 357801.1611495973
• The cube root of 128021670920 is 5039.9685965331

Scales and comparisons

• 128,021,670,920 seconds is equal to 4,070 years, 36 weeks, 7 hours, 15 minutes, 20 seconds.
• To count from 1 to 128,021,670,920 would take you about eight thousand, one hundred forty-one 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 128021670920 cubic inches would be around 420 feet tall.

Recreational maths with 128021670920

• 128021670920 backwards is 029076120821
• 128021670920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128021670920's digits is 38
• More coming soon!