121638143640

Names of 121638143640

• Cardinal: 121638143640 can be written as One hundred twenty-one billion, six hundred thirty-eight million, one hundred forty-three thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.2163814364 × 10¹¹

Factors of 121638143640

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1703

Divisors of 121638143640

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 17 19 20 24 26 30 34 38 39 40 51 52 57 60 65 68 76 78 85 95 102 104 114 120 130 136 152 156 163 170 190 195 204 221 228 247 255 260 285 312 323 326 340 380 390 408 442 456 489 494 510 520 570 646 652 663 680 741 760 780 815 884 969 978 988 1020 1105 1140 1235 1292 1304 1326 1481 1482 1560 1615 1630 1768 1938 1956 1976 2040 2119 2210 2280 2445 2470 2584 2652 2771 2962 2964 3097 3230 3260 3315 3705 3876 3912 4199 4238 4420 4443 4845 4890 4940 5304 5542 5924 5928 6194 6357 6460 6520 6630 7405 7410 7752 8313 8398 8476 8840 8886 9291 9690 9780 9880 10595 11084 11848 12388 12597 12714 12920 13260 13855 14810 14820 15485 16626 16796 16952 17772 18582 19253 19380 19560 20995 21190 22168 22215 24776 25177 25194 25428 26520 27710 28139 29620 29640 30970 31785 33252 33592 35544 36023 37164 38506 38760 40261 41565 41990 42380 44430 46455 50354 50388 50856 52649 55420 56278 57759 59240 61940 62985 63570 66504 72046 74328 75531 77012 80522 83130 83980 84417 84760 88860 92910 96265 100708 100776 105298 108069 110840 112556 115518 120783 123880 125885 125970 127140 140695 144092 151062 154024 157947 161044 166260 167960 168834 177720 180115 185820 192530 201305 201416 210596 216138 225112 231036 241403 241566 251770 251940 254280 263245 281390 288184 288795 302124 315894 322088 327301 332520 337668 360230 365807 371640 377655 385060 402610 421192 422085 432276 462072 478363 482806 483132 503540 503880 526490 540345 562780 577590 603915 604248 631788 654602 675336 684437 720460 724209 731614 755310 770120 789735 805220 844170 864552 956726 965612 966264 981903 1007080 1052980 1080690 1097421 1125560 1155180 1207015 1207830 1263576 1309204 1368874 1435089 1440920 1448418 1463228 1510620 1579470 1610440 1636505 1688340 1829035 1913452 1931224 1963806 2053311 2105960 2161380 2194842 2310360 2391815 2414030 2415660 2618408 2737748 2870178 2896836 2926456 3021240 3138239 3158940 3273010 3376680 3422185 3621045 3658070 3826904 3927612 4103851 4106622 4322760 4389684 4586657 4783630 4828060 4831320 4909515 5475496 5487105 5740356 5793672 6218719 6276478 6317880 6546020 6844370 7175445 7242090 7316140 7855224 8207702 8213244 8779368 9173314 9414717 9567260 9656120 9819030 10266555 10974210 11480712 12311553 12437438 12552956 13092040 13688740 13759971 14350890 14484180 14632280 15691195 16415404 16426488 18346628 18656157 18829434 19134520 19638060 20519255 20533110 21948420 22933285 24623106 24874876 25105912 27377480 27519942 28701780 28968360 31093595 31382390 32830808 36693256 37312314 37658868 39276120 41038510 41066220 43896840 45866570 47073585 49246212 49749752 53350063 55039884 57403560 59626541 61557765 62187190 62764780 68799855 74624628 75317736 77973169 82077020 82132440 91733140 93280785 94147170 98492424 106700126 110079768 119253082 123115530 124374380 125529560 137599710 149249256 155946338 160050189 164154040 178879623 183466280 186561570 188294340 213400252 233919507 238506164 246231060 248748760 266750315 275199420 298132705 311892676 320100378 357759246 373123140 376588680 389865845 426800504 467839014 477012328 492462120 533500630 550398840 596265410 623785352 640200756 715518492 746246280 779731690 800250945 894398115 935678028 1013651197 1067001260 1169597535 1192530820 1280401512 1431036984 1559463380 1600501890 1788796230 1871356056 2027302394 2134002520 2339195070 2385061640 3040953591 3118926760 3201003780 3577592460 4054604788 4678390140 5068255985 6081907182 6402007560 7155184920 8109209576 9356780280 10136511970 12163814364 15204767955 20273023940 24327628728 30409535910 40546047880 60819071820 121638143640
• Sum of all divisors σ(n): 440986291200
• Sum of proper divisors (its aliquot sum) s(n): 319348147560
• 121638143640 is an abundant number, because the sum of its proper divisors (319348147560) is greater than itself. Its abundance is 197710003920

Bases of 121638143640

• Binary: 1110001010010001100101100011010011000₂
• Hexadecimal: 0x1C5232C698
• Base-36: 1JVO7KBC

Squares and roots of 121638143640

• 121638143640 squared (121638143640²) is 14795837988185272449600
• 121638143640 cubed (121638143640³) is 1799738266481048793156979460544000
• The square root of 121638143640 is 348766.6033897167
• The cube root of 121638143640 is 4954.7672827389

Scales and comparisons

• 121,638,143,640 seconds is equal to 3,867 years, 37 weeks, 1 day, 21 hours, 14 minutes.
• To count from 1 to 121,638,143,640 would take you about seven thousand, seven hundred thirty-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 121638143640 cubic inches would be around 412.9 feet tall.

Recreational maths with 121638143640

• 121638143640 backwards is 046341836121
• 121638143640 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 121638143640's digits is 39
• More coming soon!