81842844764920

Names of 81842844764920

• Cardinal: 81842844764920 can be written as Eighty-one trillion, eight hundred forty-two billion, eight hundred forty-four million, seven hundred sixty-four thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 8.184284476492 × 10¹³

Factors of 81842844764920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 14569

Divisors of 81842844764920

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 20 40 167 281 334 562 668 835 1124 1336 1405 1670 2248 2810 3340 4567 5620 6680 9134 9547 11240 18268 19094 22835 36536 38188 45670 46927 47735 76376 91340 93854 95470 182680 187708 190940 234635 375416 381880 469270 762689 938540 1283327 1525378 1594349 1877080 2566654 2682707 3050756 3188698 3813445 5133308 5365414 6101512 6377396 6416635 7626890 7971745 10266616 10730828 12754792 12833270 13413535 15253780 15943490 21461656 25666540 26827070 30507560 31886980 43601149 51333080 53654140 63773960 87202298 107308280 174404596 214315609 218005745 348809192 428631218 436011490 448012069 857262436 872022980 896024138 1071578045 1714524872 1744045960 1792048276 2143156090 2240060345 3584096552 4286312180 4480120690 7281391883 8572624360 8960241380 12251922869 14562783766 17920482760 24503845738 29125567532 36406959415 49007691476 58251135064 61259614345 72813918830 98015382952 122519228690 145627837660 245038457380 291255675320 490076914760 2046071119123 4092142238246 8184284476492 10230355595615 16368568952984 20460711191230 40921422382460 81842844764920
• Sum of all divisors σ(n): 185968507253760
• Sum of proper divisors (its aliquot sum) s(n): 104125662488840
• 81842844764920 is an abundant number, because the sum of its proper divisors (104125662488840) is greater than itself. Its abundance is 22282817723920

Bases of 81842844764920

• Binary: 10010100110111110000101101100001000101011111000₂
• Hexadecimal: 0x4A6F85B08AF8
• Base-36: T0E30NIT4

Squares and roots of 81842844764920

• 81842844764920 squared (81842844764920²) is 6698251239214793050062606400
• 81842844764920 cubed (81842844764920³) is 548203936367489327988737585682490487488000
• The square root of 81842844764920 is 9046703.5302877037
• The cube root of 81842844764920 is 43417.0427174837

Scales and comparisons

• 81,842,844,764,920 seconds is equal to 2,602,349 years, 15 weeks, 6 days, 17 hours, 48 minutes, 40 seconds.
• To count from 1 to 81,842,844,764,920 would take you about six million, five hundred five thousand, eight hundred seventy-three 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 81842844764920 cubic inches would be around 3618.1 feet tall.

Recreational maths with 81842844764920

• 81842844764920 backwards is 02946744824818
• The number of decimal digits it has is: 14
• The sum of 81842844764920's digits is 67
• More coming soon!