19939949820

Names of 19939949820

• Cardinal: 19939949820 can be written as Nineteen billion, nine hundred thirty-nine million, nine hundred forty-nine thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.993994982 × 10¹⁰

Factors of 19939949820

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 988

Divisors of 19939949820

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 23 27 28 30 35 36 42 45 46 54 60 63 69 70 81 84 89 90 92 105 108 115 126 135 138 140 161 162 178 180 189 207 210 230 252 267 270 276 315 322 324 345 356 378 405 414 420 445 460 483 534 540 567 621 623 630 644 690 756 801 805 810 828 859 890 945 966 1035 1068 1134 1242 1246 1260 1335 1380 1449 1602 1610 1620 1718 1780 1863 1869 1890 1932 2047 2070 2268 2403 2415 2484 2492 2577 2670 2835 2898 3105 3115 3204 3220 3436 3726 3738 3780 4005 4094 4140 4295 4347 4806 4830 5154 5340 5607 5670 5796 6013 6141 6210 6230 7209 7245 7452 7476 7731 8010 8188 8590 8694 9315 9345 9612 9660 10235 10308 11214 11340 12015 12026 12282 12420 12460 12885 13041 14329 14418 14490 15462 16020 16821 17180 17388 18039 18423 18630 18690 19757 20470 21735 22428 23193 24030 24052 24564 25770 26082 28035 28658 28836 28980 30065 30705 30924 33642 36045 36078 36846 37260 37380 38655 39514 40940 42987 43470 46386 48060 50463 51540 52164 54117 55269 56070 57316 59271 60130 61410 65205 67284 69579 71645 72090 72156 73692 76451 77310 79028 84105 85974 86940 90195 92115 92772 98785 100926 108234 110538 112140 115965 118542 120260 122820 128961 130410 138299 139158 143290 144180 152902 154620 162351 165807 168210 171948 177813 180390 184230 197570 201852 214935 216468 221076 229353 231930 237084 252315 257922 260820 270585 276345 276598 278316 286580 296355 305804 324702 331614 336420 347895 355626 360780 368460 382255 386883 395140 414897 429870 458706 463860 487053 504630 515844 533439 535157 541170 552690 553196 592710 644805 649404 663228 688059 691495 695790 711252 764510 773766 811755 829035 829794 859740 889065 917412 974106 1009260 1066878 1070314 1082340 1105380 1146765 1160649 1185420 1244691 1289610 1376118 1382990 1391580 1529020 1547532 1600317 1605471 1623510 1658070 1659588 1758373 1778130 1934415 1948212 2064177 2074485 2133756 2140628 2293530 2321298 2435265 2489382 2579220 2667195 2675785 2752236 2765980 3200634 3210942 3247020 3316140 3440295 3516746 3556260 3734073 3868830 4128354 4148970 4587060 4642596 4816413 4870530 4978764 5275119 5334390 5351570 5803245 6192531 6223455 6401268 6421884 6880590 7033492 7468146 7737660 8001585 8027355 8256708 8297940 8791865 9632826 9741060 10320885 10550238 10668780 10703140 11202219 11606490 12308611 12385062 12446910 13761180 14449239 14936292 15825357 16003170 16054710 17583730 18670365 19265652 20641770 21100476 22404438 23212980 24082065 24617222 24770124 24893820 26375595 28898478 30962655 31650714 32006340 32109420 35167460 36925833 37340730 41283540 43347717 44808876 47476071 48164130 49234444 52751190 56011095 57796956 61543055 61925310 63301428 72246195 73851666 74681460 79126785 86695434 94952142 96328260 105502380 110777499 112022190 123086110 123850620 142428213 144492390 147703332 158253570 173390868 184629165 189904284 216738585 221554998 224044380 237380355 246172220 284856426 288984780 316507140 332332497 369258330 433477170 443109996 474760710 553887495 569712852 664664994 712141065 738516660 866954340 949521420 996997491 1107774990 1329329988 1424282130 1661662485 1993994982 2215549980 2848564260 3323324970 3987989964 4984987455 6646649940 9969974910 19939949820
• Sum of all divisors σ(n): 75522585600
• Sum of proper divisors (its aliquot sum) s(n): 55582635780
• 19939949820 is an abundant number, because the sum of its proper divisors (55582635780) is greater than itself. Its abundance is 35642685960

Bases of 19939949820

• Binary: 10010100100100000110111110011111100₂
• Hexadecimal: 0x4A4837CFC
• Base-36: 95RQBR0

Squares and roots of 19939949820

• 19939949820 squared (19939949820²) is 397601598824118032400
• 19939949820 cubed (19939949820³) is 7928155928904684571813134168000
• The square root of 19939949820 is 141208.8871849077
• The cube root of 19939949820 is 2711.6982053161

Scales and comparisons

• 19,939,949,820 seconds is equal to 634 years, 1 week, 3 days, 10 hours, 57 minutes.
• To count from 1 to 19,939,949,820 would take you about one thousand, two hundred sixty-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 19939949820 cubic inches would be around 226 feet tall.

Recreational maths with 19939949820

• 19939949820 backwards is 02894993991
• 19939949820 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19939949820's digits is 63
• More coming soon!