18978432152400

Names of 18978432152400

• Cardinal: 18978432152400 can be written as Eighteen trillion, nine hundred seventy-eight billion, four hundred thirty-two million, one hundred fifty-two thousand, four hundred.

Scientific notation

• Scientific notation: 1.89784321524 × 10¹³

Factors of 18978432152400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 104109

Divisors of 18978432152400

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 35 36 40 42 45 48 50 56 60 63 70 72 75 80 84 90 100 105 112 120 126 140 144 150 168 175 180 200 210 225 240 252 280 300 315 336 350 360 400 420 450 504 525 560 600 630 700 720 840 900 1008 1050 1200 1260 1400 1575 1680 1800 2100 2520 2800 3150 3600 4200 5040 6300 7823 8400 12600 15646 23469 25200 31292 39115 46938 54761 62584 70407 78230 93876 96269 109522 117345 125168 140814 156460 164283 187752 192538 195575 219044 234690 273805 281628 288807 312920 328566 352035 375504 385076 391150 438088 469380 481345 492849 547610 563256 577614 586725 625840 657132 673883 704070 770152 782300 821415 866421 876176 938760 962690 985698 1095220 1126512 1155228 1173450 1314264 1347766 1369025 1408140 1444035 1540304 1564600 1642830 1732842 1760175 1877520 1925380 1971396 2021649 2190440 2310456 2346900 2406725 2464245 2628528 2695532 2738050 2816280 2888070 3129200 3285660 3369415 3465684 3520350 3850760 3942792 4043298 4107075 4332105 4380880 4620912 4693800 4813450 4928490 5391064 5476100 5632560 5776140 6064947 6571320 6738830 6931368 7040700 7220175 7701520 7885584 8086596 8214150 8664210 9387600 9626900 9856980 10108245 10782128 10952200 11552280 12129894 12321225 13142640 13477660 13862736 14081400 14440350 16173192 16428300 16847075 17328420 19253800 19713960 20216490 21660525 21904400 23104560 24259788 24642450 26955320 28162800 28880700 30324735 32346384 32856600 33694150 34656840 38507600 39427920 40432980 43321050 48519576 49284900 50541225 53910640 57761400 60649470 65713200 67388300 69313680 80865960 86642100 97039152 98569800 101082450 115522800 121298940 134776600 151623675 161731920 173284200 197139600 202164900 242597880 269553200 303247350 346568400 404329800 485195760 606494700 753112387 808659600 1212989400 1506224774 2259337161 2425978800 3012449548 3765561935 4518674322 5271786709 6024899096 6778011483 7531123870 9037348644 10543573418 11296685805 12049798192 13556022966 15062247740 15815360127 18074697288 18827809675 21087146836 22593371610 26358933545 27112045932 30124495480 31630720254 33890057415 36149394576 37655619350 42174293672 45186743220 47446080381 52717867090 54224091864 56483429025 60248990960 63261440508 67780114830 75311238700 79076800635 84348587344 90373486440 94892160762 105435734180 108448183728 112966858050 126522881016 131794667725 135560229660 150622477400 158153601270 169450287075 180746972880 189784321524 210871468360 225933716100 237230401905 253045762032 263589335450 271120459320 301244954800 316307202540 338900574150 379568643048 395384003175 421742936720 451867432200 474460803810 527178670900 542240918640 632614405080 677801148300 759137286096 790768006350 903734864400 948921607620 1054357341800 1186152009525 1265228810160 1355602296600 1581536012700 1897843215240 2108714683600 2372304019050 2711204593200 3163072025400 3795686430480 4744608038100 6326144050800 9489216076200 18978432152400
• Sum of all divisors σ(n): 75279467877120
• Sum of proper divisors (its aliquot sum) s(n): 56301035724720
• 18978432152400 is an abundant number, because the sum of its proper divisors (56301035724720) is greater than itself. Its abundance is 37322603572320

Bases of 18978432152400

• Binary: 100010100001011000010101101001111001101010000₂
• Hexadecimal: 0x1142C2B4F350
• Base-36: 6Q6KKHTG0

Squares and roots of 18978432152400

• 18978432152400 squared (18978432152400²) is 360180886963250096825760000
• 18978432152400 cubed (18978432152400³) is 6835668525823295634800416764565824000000
• The square root of 18978432152400 is 4356424.2392586147
• The cube root of 18978432152400 is 26673.9158783715

Scales and comparisons

• 18,978,432,152,400 seconds is equal to 603,455 years, 22 weeks, 5 days, 13 hours.
• To count from 1 to 18,978,432,152,400 would take you about one million, five hundred eight thousand, six hundred thirty-eight 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 18978432152400 cubic inches would be around 2222.8 feet tall.

Recreational maths with 18978432152400

• 18978432152400 backwards is 00425123487981
• The number of decimal digits it has is: 14
• The sum of 18978432152400's digits is 54
• More coming soon!