18913378664448

Names of 18913378664448

• Cardinal: 18913378664448 can be written as Eighteen trillion, nine hundred thirteen billion, three hundred seventy-eight million, six hundred sixty-four thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 1.8913378664448 × 10¹³

Factors of 18913378664448

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 154

Divisors of 18913378664448

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 53 64 68 72 79 96 102 106 128 136 144 153 158 159 192 204 212 237 256 272 288 289 306 316 318 384 408 424 474 477 512 544 576 578 612 632 636 711 768 816 848 867 901 948 954 1024 1088 1152 1156 1224 1264 1272 1343 1422 1536 1632 1696 1734 1802 1896 1908 2048 2176 2304 2312 2448 2528 2544 2601 2686 2703 2809 2844 3072 3264 3392 3468 3604 3792 3816 4029 4096 4187 4352 4608 4624 4896 5056 5088 5202 5372 5406 5618 5688 6144 6528 6784 6936 7208 7584 7632 8058 8109 8192 8374 8427 8704 9216 9248 9792 10112 10176 10404 10744 10812 11236 11376 12087 12288 12561 13056 13568 13872 14416 15168 15264 15317 16116 16218 16384 16748 16854 17408 18432 18496 19584 20224 20352 20808 21488 21624 22472 22752 22831 24174 24576 25122 25281 26112 27136 27744 28832 30336 30528 30634 32232 32436 32768 33496 33708 34816 36864 36992 37683 39168 40448 40704 41616 42976 43248 44944 45504 45662 45951 47753 48348 49152 50244 50562 52224 54272 55488 57664 60672 61056 61268 64464 64872 66992 67416 68493 69632 71179 73728 73984 75366 78336 80896 81408 83232 85952 86496 89888 91008 91324 91902 95506 96696 98304 100488 101124 104448 108544 110976 115328 121344 122112 122536 128928 129744 133984 134832 136986 137853 139264 142358 143259 147456 147968 150732 156672 161792 162816 166464 171904 172992 179776 182016 182648 183804 191012 193392 200976 202248 205479 208896 213537 217088 221911 221952 230656 242688 244224 245072 257856 259488 267968 269664 273972 275706 278528 284716 286518 294912 295936 301464 313344 323584 325632 332928 343808 345984 359552 364032 365296 367608 382024 386784 401952 404496 410958 417792 427074 429777 434176 443822 443904 461312 485376 488448 490144 515712 518976 535936 539328 547944 551412 557056 569432 573036 591872 602928 626688 640611 647168 651264 665733 665856 687616 691968 719104 728064 730592 735216 764048 773568 803904 808992 811801 821916 835584 854148 859554 868352 887644 887808 922624 970752 976896 980288 1031424 1037952 1071872 1078656 1095888 1102824 1138864 1146072 1183744 1205856 1210043 1253376 1281222 1294336 1302528 1331466 1331712 1375232 1383936 1438208 1456128 1461184 1470432 1528096 1547136 1607808 1617984 1623602 1643832 1671168 1708296 1719108 1736704 1775288 1775616 1845248 1941504 1953792 1960576 1997199 2062848 2075904 2143744 2157312 2191776 2205648 2277728 2292144 2367488 2411712 2420086 2435403 2506752 2562444 2588672 2605056 2662932 2663424 2750464 2767872 2876416 2912256 2922368 2940864 3056192 3094272 3215616 3235968 3247204 3287664 3416592 3438216 3550576 3551232 3630129 3690496 3772487 3883008 3907584 3921152 3994398 4125696 4151808 4287488 4314624 4383552 4411296 4555456 4584288 4734976 4823424 4840172 4870806 5013504 5124888 5210112 5325864 5326848 5500928 5535744 5752832 5824512 5844736 5881728 6112384 6188544 6431232 6471936 6494408 6575328 6833184 6876432 7101152 7102464 7260258 7306209 7380992 7544974 7766016 7815168 7842304 7988796 8251392 8303616 8574976 8629248 8767104 8822592 9110912 9168576 9469952 9646848 9680344 9741612 10249776 10651728 10653696 10890387 11001856 11071488 11317461 11505664 11649024 11689472 11763456 12224768 12377088 12862464 12943872 12988816 13150656 13666368 13752864 14202304 14204928 14520516 14612418 14761984 15089948 15630336 15684608 15977592 16502784 16607232 17149952 17258496 17534208 17645184 18221824 18337152 19293696 19360688 19483224 20499552 21303456 21307392 21780774 22003712 22142976 22634922 23011328 23298048 23378944 23526912 24449536 24754176 25724928 25887744 25977632 26301312 27332736 27505728 28404608 28409856 29041032 29224836 29523968 30179896 31369216 31955184 33005568 33214464 33952383 34299904 34516992 35068416 35290368 36443648 36674304 38587392 38721376 38966448 40999104 42606912 42614784 43561548 44007424 44285952 45269844 46022656 46757888 47053824 48899072 49508352 51449856 51775488 51955264 52602624 54665472 55011456 56809216 58082064 58449672 60359792 62738432 63910368 64132279 66011136 66428928 67904766 68599808 69033984 70136832 70580736 72887296 73348608 77174784 77442752 77932896 81998208 85213824 85229568 87123096 88571904 90539688 92045312 93515776 94107648 97798144 99016704 102899712 103550976 103910528 105205248 109330944 110022912 113618432 116164128 116899344 120719584 125476864 127820736 128264558 132022272 132857856 135809532 137199616 138067968 140273664 141161472 145774592 146697216 154349568 154885504 155865792 163996416 170427648 174246192 181079376 187031552 188215296 192396837 195596288 198033408 205799424 207101952 207821056 210410496 218661888 220045824 227236864 232328256 233798688 241439168 250953728 255641472 256529116 265715712 271619064 276135936 280547328 282322944 291549184 293394432 308699136 309771008 311731584 327992832 340855296 348492384 362158752 374063104 376430592 384793674 391192576 396066816 411598848 414203904 415642112 420820992 437323776 440091648 454473728 464656512 467597376 482878336 501907456 511282944 513058232 543238128 561094656 564645888 577190511 583098368 586788864 617398272 619542016 623463168 655985664 681710592 696984768 724317504 748126208 752861184 769587348 782385152 828407808 831284224 841641984 874647552 880183296 908947456 929313024 935194752 965756672 1022565888 1026116464 1086476256 1122189312 1129291776 1154381022 1166196736 1173577728 1234796544 1239084032 1246926336 1311971328 1363421184 1393969536 1448635008 1505722368 1539174696 1564770304 1662568448 1683283968 1749295104 1760366592 1817894912 1858626048 1870389504 1931513344 2045131776 2052232928 2172952512 2244378624 2258583552 2308762044 2332393472 2347155456 2478168064 2493852672 2623942656 2726842368 2787939072 2897270016 3078349392 3325136896 3366567936 3498590208 3520733184 3635789824 3717252096 3740779008 3863026688 4090263552 4104465856 4345905024 4517167104 4617524088 4694310912 4956336128 4987705344 5247885312 5453684736 5575878144 5794540032 6156698784 6650273792 6733135872 6997180416 7041466368 7271579648 7434504192 7481558016 7726053376 8180527104 8208931712 8691810048 9235048176 9912672256 9975410688 10495770624 10907369472 11151756288 11589080064 12313397568 13300547584 14082932736 14869008384 14963116032 15452106752 16361054208 16417863424 17383620096 18470096352 19825344512 19950821376 20991541248 21814738944 22303512576 23178160128 24626795136 26601095168 29738016768 29926232064 30904213504 32722108416 32835726848 34767240192 36940192704 39650689024 39901642752 44607025152 46356320256 49253590272 59476033536 59852464128 61808427008 65444216832 65671453696 69534480384 73880385408 79803285504 89214050304 92712640512 98507180544 118952067072 119704928256 123616854016 131342907392 139068960768 147760770816 178428100608 185425281024 197014361088 239409856512 262685814784 278137921536 295521541632 356856201216 370850562048 394028722176 525371629568 556275843072 591043083264 788057444352 1050743259136 1112551686144 1182086166528 1576114888704 2101486518272 2364172333056 3152229777408 4728344666112 6304459554816 9456689332224 18913378664448
• Sum of all divisors σ(n): 59905454372400
• Sum of proper divisors (its aliquot sum) s(n): 40992075707952
• 18913378664448 is an abundant number, because the sum of its proper divisors (40992075707952) is greater than itself. Its abundance is 22078697043504

Bases of 18913378664448

• Binary: 100010011001110011101001101111000000000000000₂
• Hexadecimal: 0x11339D378000
• Base-36: 6PCOPBSW0

Squares and roots of 18913378664448

• 18913378664448 squared (18913378664448²) is 357715892504796812179144704
• 18913378664448 cubed (18913378664448³) is 6765616129234198264966399762258452283392
• The square root of 18913378664448 is 4348951.4442504413
• The cube root of 18913378664448 is 26643.4037389963

Scales and comparisons

• 18,913,378,664,448 seconds is equal to 601,386 years, 48 weeks, 5 days, 15 hours, 40 minutes, 48 seconds.
• To count from 1 to 18,913,378,664,448 would take you about one million, five hundred three thousand, four hundred sixty-seven 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 18913378664448 cubic inches would be around 2220.3 feet tall.

Recreational maths with 18913378664448

• 18913378664448 backwards is 84446687331981
• 18913378664448 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18913378664448's digits is 72
• More coming soon!