1998218160

Names of 1998218160

• Cardinal: 1998218160 can be written as One billion, nine hundred ninety-eight million, two hundred eighteen thousand, one hundred sixty.

Scientific notation

• Scientific notation: 1.99821816 × 10⁹

Factors of 1998218160

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 57

Divisors of 1998218160

• Number of divisors d(n): 260
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 47 48 54 60 72 80 81 90 94 108 120 135 141 144 162 180 188 216 235 240 243 270 282 324 360 376 405 423 432 470 486 540 564 648 705 720 729 752 810 846 940 972 1080 1128 1215 1269 1296 1410 1458 1620 1692 1880 1944 2115 2160 2187 2256 2430 2538 2820 2916 3240 3384 3645 3760 3807 3888 4230 4374 4860 5076 5640 5832 6345 6480 6561 6768 7290 7614 8460 8748 9720 10152 10935 11280 11421 11664 12690 13122 14580 15228 16920 17496 19035 19440 19683 20304 21870 22842 25380 26244 29160 30456 32805 33840 34263 34992 38070 39366 43740 45684 50760 52488 57105 58320 59049 60912 65610 68526 76140 78732 87480 91368 98415 101520 102789 104976 114210 118098 131220 137052 152280 157464 171315 174960 177147 182736 196830 205578 228420 236196 262440 274104 295245 304560 308367 314928 342630 354294 393660 411156 456840 472392 513945 524880 531441 548208 590490 616734 685260 708588 787320 822312 885735 913680 925101 944784 1027890 1062882 1180980 1233468 1370520 1417176 1541835 1574640 1644624 1771470 1850202 2055780 2125764 2361960 2466936 2657205 2741040 2775303 2834352 3083670 3542940 3700404 4111560 4251528 4625505 4723920 4933872 5314410 5550606 6167340 7085880 7400808 8223120 8325909 8503056 9251010 10628820 11101212 12334680 13876515 14171760 14801616 16651818 18502020 21257640 22202424 24669360 24977727 27753030 33303636 37004040 41629545 42515280 44404848 49955454 55506060 66607272 74008080 83259090 99910908 111012120 124888635 133214544 166518180 199821816 222024240 249777270 333036360 399643632 499554540 666072720 999109080 1998218160
• Sum of all divisors σ(n): 7117053408
• Sum of proper divisors (its aliquot sum) s(n): 5118835248
• 1998218160 is an abundant number, because the sum of its proper divisors (5118835248) is greater than itself. Its abundance is 3120617088

Bases of 1998218160

• Binary: 1110111000110100110001110110000₂
• Hexadecimal: 0x771A63B0
• Base-36: X1OR00

Squares and roots of 1998218160

• 1998218160 squared (1998218160²) is 3992875814953785600
• 1998218160 cubed (1998218160³) is 7978636964065453946666496000
• The square root of 1998218160 is 44701.4335340601
• The cube root of 1998218160 is 1259.5467757695

Scales and comparisons

• 1,998,218,160 seconds is equal to 63 years, 27 weeks, 6 days, 12 hours, 36 minutes.
• To count from 1 to 1,998,218,160 would take you about one hundred twenty-seven 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 1998218160 cubic inches would be around 105 feet tall.

Recreational maths with 1998218160

• 1998218160 backwards is 0618128991
• 1998218160 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1998218160's digits is 45
• More coming soon!