18989594455728

Names of 18989594455728

• Cardinal: 18989594455728 can be written as Eighteen trillion, nine hundred eighty-nine billion, five hundred ninety-four million, four hundred fifty-five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8989594455728 × 10¹³

Factors of 18989594455728

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 134478

Divisors of 18989594455728

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 17 24 26 31 34 39 48 51 52 62 68 78 93 102 104 124 136 156 186 204 208 221 248 272 312 372 403 408 431 442 496 527 624 663 744 806 816 862 884 1054 1209 1293 1326 1488 1581 1612 1724 1768 2108 2418 2586 2652 3162 3224 3448 3536 4216 4836 5172 5304 5603 6324 6448 6851 6896 7327 8432 9672 10344 10608 11206 12648 13361 13702 14654 16809 19344 20553 20688 21981 22412 25296 26722 27404 29308 33618 40083 41106 43962 44824 53444 54808 58616 67236 80166 82212 87924 89648 95251 106888 109616 117232 133981 134472 160332 164424 173693 175848 190502 213776 227137 267962 268944 285753 320664 328848 347386 351696 381004 401943 454274 521079 535924 571506 641328 681411 694772 762008 803886 908548 1042158 1071848 1143012 1362822 1389544 1524016 1607772 1741753 1817096 2084316 2143696 2277677 2286024 2725644 2779088 2952781 3215544 3483506 3634192 4153411 4168632 4555354 4572048 5225259 5451288 5905562 6431088 6833031 6967012 8306822 8337264 8858343 9110708 10450518 10902576 11811124 12460233 13666062 13934024 16613644 17716686 18221416 20901036 23622248 24920466 27332124 27868048 29609801 33227288 35433372 36442832 41802072 47244496 49840932 53994343 54664248 57745811 59219602 66454576 70607987 70866744 83604144 88829403 99681864 107988686 109328496 115491622 118439204 141215974 141733488 161983029 173237433 177658806 199363728 211823961 215977372 230983244 236878408 282431948 323966058 346474866 355317612 423647922 431954744 461966488 473756816 564863896 647932116 692949732 710635224 750695543 847295844 863909488 917903831 923932976 981678787 1129727792 1295864232 1385899464 1421270448 1501391086 1694591688 1790120141 1835807662 1963357574 2252086629 2591728464 2753711493 2771798928 2945036361 3002782172 3389183376 3580240282 3671615324 3926715148 4504173258 5370360423 5507422986 5890072722 6005564344 7160480564 7343230648 7853430296 9008346516 10740720846 11014845972 11780145444 12011128688 12761824231 14320961128 14686461296 15706860592 18016693032 21481441692 22029691944 23271561833 23560290888 25523648462 28641922256 30432042397 36033386064 38285472693 42962883384 44059383888 46543123666 47120581776 51047296924 60864084794 69814685499 76570945386 85925766768 91296127191 93086247332 102094593848 121728169588 139629370998 153141890772 182592254382 186172494664 204189187696 243456339176 279258741996 306283781544 365184508764 372344989328 395616551161 486912678352 558517483992 612567563088 730369017528 791233102322 1117034967984 1186849653483 1460738035056 1582466204644 2373699306966 3164932409288 4747398613932 6329864818576 9494797227864 18989594455728
• Sum of all divisors σ(n): 57876519665664
• Sum of proper divisors (its aliquot sum) s(n): 38886925209936
• 18989594455728 is an abundant number, because the sum of its proper divisors (38886925209936) is greater than itself. Its abundance is 19897330754208

Bases of 18989594455728

• Binary: 100010100010101011100000010000010111010110000₂
• Hexadecimal: 0x11455C082EB0
• Base-36: 6QBP68PTC

Squares and roots of 18989594455728

• 18989594455728 squared (18989594455728²) is 360604697593015596552009984
• 18989594455728 cubed (18989594455728³) is 6847736966121801038860281265560901988352
• The square root of 18989594455728 is 4357705.1822866585
• The cube root of 18989594455728 is 26679.1443395275

Scales and comparisons

• 18,989,594,455,728 seconds is equal to 603,810 years, 18 weeks, 6 days, 20 hours, 48 minutes, 48 seconds.
• To count from 1 to 18,989,594,455,728 would take you about one million, five hundred nine thousand, five hundred twenty-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 18989594455728 cubic inches would be around 2223.3 feet tall.

Recreational maths with 18989594455728

• 18989594455728 backwards is 82755449598981
• The number of decimal digits it has is: 14
• The sum of 18989594455728's digits is 84
• More coming soon!