1989534690

Names of 1989534690

• Cardinal: 1989534690 can be written as One billion, nine hundred eighty-nine million, five hundred thirty-four thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.98953469 × 10⁹

Factors of 1989534690

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 261

Divisors of 1989534690

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 9 10 11 13 15 18 22 26 27 30 33 39 45 54 55 65 66 78 90 99 110 117 130 135 143 165 195 198 227 234 270 286 297 330 351 390 429 454 495 585 594 681 702 715 858 990 1135 1170 1287 1362 1430 1485 1755 2043 2145 2270 2497 2574 2951 2970 3405 3510 3861 4086 4290 4994 5902 6129 6435 6810 7491 7722 8853 10215 12258 12485 12870 14755 14982 17706 19305 20430 22473 24970 26559 29510 30645 32461 37455 38610 44265 44946 51529 53118 61290 64922 67419 74910 79677 88530 97383 103058 112365 132795 134838 154587 159354 162305 194766 224730 257645 265590 292149 309174 324610 337095 398385 463761 486915 515290 566819 584298 669877 674190 772935 796770 876447 927522 973830 1133638 1339754 1391283 1460745 1545870 1700457 1752894 2009631 2318805 2782566 2834095 2921490 3349385 3400914 4019262 4382235 4637610 5101371 5668190 6028893 6698770 6956415 7368647 8502285 8764470 10048155 10202742 12057786 13912830 14737294 15304113 17004570 18086679 20096310 22105941 25506855 30144465 30608226 36173358 36843235 44211882 51013710 60288930 66317823 73686470 76520565 90433395 110529705 132635646 153041130 180866790 198953469 221059410 331589115 397906938 663178230 994767345 1989534690
• Sum of all divisors σ(n): 6260526720
• Sum of proper divisors (its aliquot sum) s(n): 4270992030
• 1989534690 is an abundant number, because the sum of its proper divisors (4270992030) is greater than itself. Its abundance is 2281457340

Bases of 1989534690

• Binary: 1110110100101011110001111100010₂
• Hexadecimal: 0x7695E3E2
• Base-36: WWIMSI

Squares and roots of 1989534690

• 1989534690 squared (1989534690²) is 3958248282713396100
• 1989534690 cubed (1989534690³) is 7875072270091228868660709000
• The square root of 1989534690 is 44604.2003627461
• The cube root of 1989534690 is 1257.7196282645

Scales and comparisons

• 1,989,534,690 seconds is equal to 63 years, 13 weeks, 4 days, 31 minutes, 30 seconds.
• To count from 1 to 1,989,534,690 would take you about one hundred twenty-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 1989534690 cubic inches would be around 104.8 feet tall.

Recreational maths with 1989534690

• 1989534690 backwards is 0964359891
• 1989534690 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1989534690's digits is 54
• More coming soon!