18902973949440

Names of 18902973949440

• Cardinal: 18902973949440 can be written as Eighteen trillion, nine hundred two billion, nine hundred seventy-three million, nine hundred forty-nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.890297394944 × 10¹³

Factors of 18902973949440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 2643779

Divisors of 18902973949440

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 19 20 21 24 28 30 32 35 38 40 42 48 49 56 57 60 64 70 76 80 84 95 96 98 105 112 114 120 128 133 140 147 152 160 168 190 192 196 210 224 228 240 245 256 266 280 285 294 304 320 336 380 384 392 399 420 448 456 480 490 512 532 560 570 588 608 640 665 672 735 760 768 784 798 840 896 912 931 960 980 1064 1120 1140 1176 1216 1280 1330 1344 1470 1520 1536 1568 1596 1680 1792 1824 1862 1920 1960 1995 2128 2240 2280 2352 2432 2560 2660 2688 2793 2940 3040 3136 3192 3360 3584 3648 3724 3840 3920 3990 4256 4480 4560 4655 4704 4864 5320 5376 5586 5880 6080 6272 6384 6720 7296 7448 7680 7840 7980 8512 8960 9120 9310 9408 9728 10640 10752 11172 11760 12160 12544 12768 13440 13965 14592 14896 15680 15960 17024 17920 18240 18620 18816 21280 22344 23520 24320 25088 25536 26880 27930 29184 29792 31360 31920 34048 36480 37240 37632 42560 44688 47040 48640 51072 53760 55860 59584 62720 63840 68096 72960 74480 75264 85120 89376 94080 102144 111720 119168 125440 127680 145920 148960 170240 178752 188160 204288 223440 238336 255360 297920 340480 357504 376320 446880 476672 510720 595840 715008 893760 1021440 1191680 1430016 1787520 2383360 2643743 3575040 5287486 7150080 7931229 10574972 13218715 15862458 18506201 21149944 26437430 31724916 37012402 39656145 42299888 50231117 52874860 55518603 63449832 74024804 79312290 84599776 92531005 100462234 105749720 111037206 126899664 129543407 148049608 150693351 158624580 169199552 185062010 200924468 211499440 222074412 251155585 253799328 259086814 277593015 296099216 301386702 317249160 338399104 351617819 370124020 388630221 401848936 422998880 444148824 502311170 507598656 518173628 555186030 592198432 602773404 634498320 647717035 676798208 703235638 740248040 753466755 777260442 803697872 845997760 888297648 1004622340 1015197312 1036347256 1054853457 1110372060 1184396864 1205546808 1268996640 1295434070 1353596416 1406471276 1480496080 1506933510 1554520884 1607395744 1691995520 1758089095 1776595296 1943151105 2009244680 2030394624 2072694512 2109706914 2220744120 2368793728 2411093616 2461324733 2537993280 2590868140 2812942552 2960992160 3013867020 3109041768 3214791488 3383991040 3516178190 3553190592 3886302210 4018489360 4060789248 4145389024 4219413828 4441488240 4737587456 4822187232 4922649466 5075986560 5181736280 5274267285 5625885104 5921984320 6027734040 6218083536 6429582976 6767982080 7032356380 7106381184 7383974199 7772604420 8036978720 8290778048 8438827656 8882976480 9475174912 9644374464 9845298932 10151973120 10363472560 10548534570 11251770208 11843968640 12055468080 12306623665 12436167072 12859165952 14064712760 14212762368 14767948398 15545208840 16073957440 16581556096 16877655312 17765952960 19288748928 19690597864 20303946240 20726945120 21097069140 22503540416 23687937280 24110936160 24613247330 24872334144 25718331904 28129425520 28425524736 29535896796 31090417680 32147914880 33163112192 33755310624 35531905920 36919870995 38577497856 39381195728 41453890240 42194138280 45007080832 47375874560 48221872320 49226494660 49744668288 56258851040 59071793592 62180835360 64295829760 66326224384 67510621248 71063811840 73839741990 77154995712 78762391456 82907780480 84388276560 90014161664 96443744640 98452989320 99489336576 112517702080 118143587184 124361670720 128591659520 135021242496 142127623680 147679483980 157524782912 165815560960 168776553120 180028323328 192887489280 196905978640 198978673152 225035404160 236287174368 248723341440 270042484992 295358967960 315049565824 331631121920 337553106240 385774978560 393811957280 450070808320 472574348736 497446682880 540084969984 590717935920 630099131648 675106212480 787623914560 900141616640 945148697472 994893365760 1181435871840 1260198263296 1350212424960 1575247829120 1890297394944 2362871743680 2700424849920 3150495658240 3780594789888 4725743487360 6300991316480 9451486974720 18902973949440
• Sum of all divisors σ(n): 73996491064320
• Sum of proper divisors (its aliquot sum) s(n): 55093517114880
• 18902973949440 is an abundant number, because the sum of its proper divisors (55093517114880) is greater than itself. Its abundance is 36190543165440

Bases of 18902973949440

• Binary: 100010011000100110001000011000010011000000000₂
• Hexadecimal: 0x1131310C2600
• Base-36: 6P7WMMNEO

Squares and roots of 18902973949440

• 18902973949440 squared (18902973949440²) is 357322424133207271676313600
• 18902973949440 cubed (18902973949440³) is 6754456474940767828933332740691984384000
• The square root of 18902973949440 is 4347755.0470834945
• The cube root of 18902973949440 is 26638.5171121301

Scales and comparisons

• 18,902,973,949,440 seconds is equal to 601,056 years, 5 weeks, 1 day, 17 hours, 4 minutes.
• To count from 1 to 18,902,973,949,440 would take you about one million, five hundred two thousand, six hundred forty 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 18902973949440 cubic inches would be around 2219.9 feet tall.

Recreational maths with 18902973949440

• 18902973949440 backwards is 04494937920981
• The number of decimal digits it has is: 14
• The sum of 18902973949440's digits is 69
• More coming soon!