19978129977408

Names of 19978129977408

• Cardinal: 19978129977408 can be written as Nineteen trillion, nine hundred seventy-eight billion, one hundred twenty-nine million, nine hundred seventy-seven thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.9978129977408 × 10¹³

Factors of 19978129977408

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 12425

Divisors of 19978129977408

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 64 72 81 94 96 108 141 144 162 188 192 216 243 282 288 324 376 423 432 486 564 576 648 752 846 864 972 1128 1269 1296 1504 1692 1728 1944 2209 2256 2538 2592 3008 3384 3807 3888 4418 4512 5076 5184 6627 6768 7614 7776 8836 9024 10152 11421 12373 13254 13536 15228 15552 17672 19881 20304 22842 24746 26508 27072 30456 35344 37119 39762 40608 45684 49492 53016 59643 60912 70688 74238 79524 81216 91368 98984 103823 106032 111357 119286 121824 141376 148476 159048 178929 182736 197968 207646 212064 222714 238572 243648 296952 311469 318096 334071 357858 365472 395936 415292 424128 445428 477144 536787 581531 593904 622938 636192 668142 715716 730944 791872 830584 890856 934407 954288 1002213 1073574 1163062 1187808 1245876 1272384 1336284 1431432 1661168 1744593 1781712 1868814 1908576 2004426 2147148 2326124 2375616 2491752 2672568 2803221 2862864 3006639 3322336 3489186 3563424 3737628 3817152 4008852 4294296 4652248 4983504 5233779 5345136 5606442 5725728 6013278 6644672 6978372 7126848 7475256 8017704 8409663 8588592 9304496 9967008 10467558 10690272 11212884 11451456 12026556 13956744 14950512 15701337 16035408 16819326 17177184 18608992 19934016 20935116 21380544 22425768 24053112 25228989 27331957 27913488 29901024 31402674 32070816 33638652 34354368 37217984 41870232 44851536 47104011 48106224 50457978 54663914 55826976 59802048 62805348 64141632 67277304 81995871 83740464 89703072 94208022 96212448 100915956 109327828 111653952 125610696 134554608 141312033 163991742 167480928 179406144 188416044 192424896 201831912 218655656 245987613 251221392 269109216 282624066 327983484 334961856 376832088 403663824 437311312 491975226 502442784 538218432 565248132 655966968 737962839 753664176 807327648 874622624 983950452 1004885568 1130496264 1284601979 1311933936 1475925678 1507328352 1614655296 1749245248 1967900904 2213888517 2260992528 2569203958 2623867872 2951851356 3014656704 3853805937 3935801808 4427777034 4521985056 5138407916 5247735744 5903702712 6641665551 7707611874 7871603616 8855554068 9043970112 10276815832 11561417811 11807405424 13283331102 15415223748 15743207232 17711108136 20553631664 23122835622 23614810848 26566662204 30830447496 34684253433 35422216272 41107263328 46245671244 47229621696 53133324408 61660894992 69368506866 70844432544 82214526656 92491342488 104052760299 106266648816 123321789984 138737013732 141688865088 184982684976 208105520598 212533297632 246643579968 277474027464 312158280897 369965369952 416211041196 425066595264 554948054928 624316561794 739930739904 832422082392 1109896109856 1248633123588 1664844164784 2219792219712 2497266247176 3329688329568 4994532494352 6659376659136 9989064988704 19978129977408
• Sum of all divisors σ(n): 60680440853760
• Sum of proper divisors (its aliquot sum) s(n): 40702310876352
• 19978129977408 is an abundant number, because the sum of its proper divisors (40702310876352) is greater than itself. Its abundance is 20724180898944

Bases of 19978129977408

• Binary: 100100010101110000101010101110011000001000000₂
• Hexadecimal: 0x122B85573040
• Base-36: 72XTQRO00

Squares and roots of 19978129977408

• 19978129977408 squared (19978129977408²) is 399125677394208174590398464
• 19978129977408 cubed (19978129977408³) is 7973784660302504855339726185246037901312
• The square root of 19978129977408 is 4469690.1433329803
• The cube root of 19978129977408 is 27134.2784949339

Scales and comparisons

• 19,978,129,977,408 seconds is equal to 635,242 years, 38 weeks, 2 days, 5 hours, 16 minutes, 48 seconds.
• To count from 1 to 19,978,129,977,408 would take you about one million, five hundred eighty-eight thousand, one hundred six 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 19978129977408 cubic inches would be around 2261.2 feet tall.

Recreational maths with 19978129977408

• 19978129977408 backwards is 80477992187991
• 19978129977408 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 19978129977408's digits is 81
• More coming soon!