1998919363840

Names of 1998919363840

• Cardinal: 1998919363840 can be written as One trillion, nine hundred ninety-eight billion, nine hundred nineteen million, three hundred sixty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.99891936384 × 10¹²

Factors of 1998919363840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2046854

Divisors of 1998919363840

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 109 112 128 140 160 218 224 256 280 320 436 448 545 560 640 763 872 896 1090 1120 1280 1526 1744 1792 2180 2240 3052 3488 3815 4360 4480 6104 6976 7630 8720 8960 12208 13952 15260 17440 24416 27904 30520 34880 48832 61040 69760 97664 122080 139520 195328 244160 488320 976640 2046731 4093462 8186924 10233655 14327117 16373848 20467310 28654234 32747696 40934620 57308468 65495392 71635585 81869240 114616936 130990784 143271170 163738480 223093679 229233872 261981568 286542340 327476960 446187358 458467744 523963136 573084680 654953920 892374716 916935488 1115468395 1146169360 1309907840 1561655753 1784749432 1833870976 2230936790 2292338720 2619815680 3123311506 3569498864 3667741952 4461873580 4584677440 6246623012 7138997728 7808278765 8923747160 9169354880 12493246024 14277995456 15616557530 17847494320 18338709760 24986492048 28555990912 31233115060 35694988640 49972984096 57111981824 62466230120 71389977280 99945968192 124932460240 142779954560 199891936384 249864920480 285559909120 399783872768 499729840960 999459681920 1998919363840
• Sum of all divisors σ(n): 5522246674560
• Sum of proper divisors (its aliquot sum) s(n): 3523327310720
• 1998919363840 is an abundant number, because the sum of its proper divisors (3523327310720) is greater than itself. Its abundance is 1524407946880

Bases of 1998919363840

• Binary: 11101000101101000111000001110110100000000₂
• Hexadecimal: 0x1D168E0ED00
• Base-36: PIAGZ8CG

Squares and roots of 1998919363840

• 1998919363840 squared (1998919363840²) is 3995678623134510299545600
• 1998919363840 cubed (1998919363840³) is 7987039371465122434717618593071104000
• The square root of 1998919363840 is 1413831.4481719523
• The cube root of 1998919363840 is 12596.9408963885

Scales and comparisons

• 1,998,919,363,840 seconds is equal to 63,559 years, 23 weeks, 3 days, 18 hours, 50 minutes, 40 seconds.
• To count from 1 to 1,998,919,363,840 would take you about one hundred fifty-eight thousand, eight hundred ninety-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 1998919363840 cubic inches would be around 1049.7 feet tall.

Recreational maths with 1998919363840

• 1998919363840 backwards is 0483639198991
• 1998919363840 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1998919363840's digits is 70
• More coming soon!