19491970121728

Names of 19491970121728

• Cardinal: 19491970121728 can be written as Nineteen trillion, four hundred ninety-one billion, nine hundred seventy million, one hundred twenty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.9491970121728 × 10¹³

Factors of 19491970121728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 349

Divisors of 19491970121728

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 8 13 16 26 32 41 52 64 82 104 128 164 169 208 256 293 328 338 416 512 533 586 656 676 832 1024 1066 1172 1312 1352 1664 2048 2132 2344 2624 2704 3328 3809 4096 4264 4688 5248 5408 6656 6929 7618 8192 8528 9376 10496 10816 12013 13312 13858 15236 16384 17056 18752 20992 21632 24026 26624 27716 30472 32768 34112 37504 41984 43264 48052 49517 53248 55432 60944 68224 75008 83968 85849 86528 96104 99034 106496 110864 121888 136448 150016 156169 167936 171698 173056 192208 198068 212992 221728 243776 272896 300032 312338 335872 343396 346112 384416 396136 425984 443456 487552 545792 600064 624676 671744 686792 692224 768832 792272 886912 975104 1091584 1116037 1200128 1249352 1343488 1373584 1384448 1537664 1584544 1773824 1950208 2030197 2183168 2232074 2400256 2498704 2747168 2768896 3075328 3169088 3519809 3547648 3900416 4060394 4366336 4464148 4800512 4997408 5494336 5537792 6150656 6338176 7039618 7095296 7800832 8120788 8732672 8928296 9601024 9994816 10988672 12301312 12676352 14079236 14190592 14508481 15601664 16241576 17465344 17856592 19989632 21977344 24602624 25352704 28158472 28381184 29016962 31203328 32483152 35713184 39979264 43954688 45757517 49205248 50705408 56316944 56762368 58033924 62406656 64966304 71426368 79958528 87909376 91515034 98410496 101410816 112633888 113524736 116067848 124813312 129932608 142852736 159917056 175818752 183030068 196820992 202821632 225267776 227049472 232135696 259865216 285705472 319834112 351637504 366060136 393641984 405643264 450535552 464271392 519730432 571410944 594847721 639668224 703275008 732120272 811286528 901071104 928542784 1039460864 1142821888 1189695442 1279336448 1406550016 1464240544 1622573056 1802142208 1857085568 2078921728 2285643776 2379390884 2558672896 2813100032 2928481088 3604284416 3714171136 4157843456 4571287552 4758781768 5117345792 5856962176 7208568832 7428342272 8315686912 9142575104 9517563536 11713924352 14417137664 14856684544 16631373824 18285150208 19035127072 23427848704 28834275328 29713369088 33262747648 36570300416 38070254144 46855697408 57668550656 59426738176 66525495296 76140508288 93711394816 115337101312 118853476352 152281016576 187422789632 237706952704 304562033152 374845579264 475413905408 609124066304 749691158528 1218248132608 1499382317056 2436496265216 4872992530432 9745985060864 19491970121728
• Sum of all divisors σ(n): 43390402247430
• Sum of proper divisors (its aliquot sum) s(n): 23898432125702
• 19491970121728 is an abundant number, because the sum of its proper divisors (23898432125702) is greater than itself. Its abundance is 4406462003974

Bases of 19491970121728

• Binary: 100011011101001010011111101001000000000000000₂
• Hexadecimal: 0x11BA53F48000
• Base-36: 6WQHJQQKG

Squares and roots of 19491970121728

• 19491970121728 squared (19491970121728²) is 379936899226337063137705984
• 19491970121728 cubed (19491970121728³) is 7405718687861744113591828930575154020352
• The square root of 19491970121728 is 4414971.1348691737
• The cube root of 19491970121728 is 26912.3679769541

Scales and comparisons

• 19,491,970,121,728 seconds is equal to 619,784 years, 18 weeks, 4 days, 55 minutes, 28 seconds.
• To count from 1 to 19,491,970,121,728 would take you about one million, five hundred forty-nine thousand, four hundred sixty 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 19491970121728 cubic inches would be around 2242.7 feet tall.

Recreational maths with 19491970121728

• 19491970121728 backwards is 82712107919491
• The number of decimal digits it has is: 14
• The sum of 19491970121728's digits is 61
• More coming soon!