19859400990

Names of 19859400990

• Cardinal: 19859400990 can be written as Nineteen billion, eight hundred fifty-nine million, four hundred thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.985940099 × 10¹⁰

Factors of 19859400990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 954

Divisors of 19859400990

• Number of divisors d(n): 384
• 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 67 78 81 90 99 110 117 130 134 135 143 162 165 195 198 201 234 243 270 286 297 330 335 351 390 402 405 429 486 495 585 594 603 670 702 715 737 810 853 858 871 891 990 1005 1053 1170 1206 1215 1287 1430 1474 1485 1706 1742 1755 1782 1809 2010 2106 2145 2211 2430 2559 2574 2613 2673 2970 3015 3159 3510 3618 3685 3861 4265 4290 4355 4422 4455 5118 5226 5265 5346 5427 6030 6318 6435 6633 7370 7677 7722 7839 8530 8710 8910 9045 9383 9581 10530 10854 11055 11089 11583 12795 12870 13065 13266 13365 15354 15678 15795 16281 18090 18766 19162 19305 19899 22110 22178 23031 23166 23517 25590 26130 26730 27135 28149 28743 31590 32562 33165 33267 34749 38385 38610 39195 39798 46062 46915 47034 47905 54270 55445 56298 57151 57486 57915 59697 66330 66534 69093 69498 70551 76770 78390 81405 84447 86229 93830 95810 99495 99801 110890 114302 115155 115830 117585 119394 121979 138186 140745 141102 143715 162810 166335 168894 171453 172458 173745 179091 198990 199602 207279 211653 230310 235170 243958 253341 258687 281490 285755 287430 298485 299403 332670 342906 345465 347490 352755 358182 365937 414558 422235 423306 431145 499005 506682 514359 517374 571510 596970 598806 609895 628661 690930 705510 731874 742963 760023 776061 844470 857265 862290 895455 898209 998010 1028718 1036395 1058265 1097811 1219790 1257322 1266705 1293435 1485926 1497015 1520046 1543077 1552122 1714530 1790910 1796418 1829685 1885983 2072790 2116530 2195622 2228889 2280069 2328183 2533410 2571795 2586870 2694627 2994030 3086154 3143305 3293433 3659370 3714815 3771966 3800115 3880305 4457778 4491045 4560138 4629231 4656366 5143590 5389254 5489055 5657949 6286610 6586866 6686667 7429630 7600230 7715385 7760610 8172593 8982090 9258462 9429915 9880299 10978110 11144445 11315898 11400345 11640915 13373334 13473135 13887693 15430770 16345186 16467165 16973847 18859830 19760598 20060001 22288890 22800690 23146155 23281830 24517779 26946270 27775386 28289745 29640897 32934330 33433335 33947694 40120002 40862965 46292310 49035558 49401495 50921541 56579490 59281794 60180003 66866670 69438465 73553337 81725930 84869235 98802990 100300005 101843082 120360006 122588895 138876930 147106674 148204485 152764623 169738470 180540009 200600010 220660011 245177790 254607705 296408970 300900015 305529246 361080018 367766685 441320022 509215410 601800030 661980033 735533370 763823115 902700045 1103300055 1323960066 1527646230 1805400090 1985940099 2206600110 3309900165 3971880198 6619800330 9929700495 19859400990
• Sum of all divisors σ(n): 63921940992
• Sum of proper divisors (its aliquot sum) s(n): 44062540002
• 19859400990 is an abundant number, because the sum of its proper divisors (44062540002) is greater than itself. Its abundance is 24203139012

Bases of 19859400990

• Binary: 10010011111101101100110100100011110₂
• Hexadecimal: 0x49FB6691E
• Base-36: 94FRVVI

Squares and roots of 19859400990

• 19859400990 squared (19859400990²) is 394395807681612980100
• 19859400990 cubed (19859400990³) is 7832464493524074421794790299000
• The square root of 19859400990 is 140923.3869519179
• The cube root of 19859400990 is 2708.0419123839

Scales and comparisons

• 19,859,400,990 seconds is equal to 631 years, 24 weeks, 2 days, 4 hours, 16 minutes, 30 seconds.
• To count from 1 to 19,859,400,990 would take you about one thousand, two hundred sixty-two 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 19859400990 cubic inches would be around 225.7 feet tall.

Recreational maths with 19859400990

• 19859400990 backwards is 09900495891
• 19859400990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19859400990's digits is 54
• More coming soon!