20019788640

Names of 20019788640

• Cardinal: 20019788640 can be written as Twenty billion, nineteen million, seven hundred eighty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.001978864 × 10¹⁰

Factors of 20019788640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 229

Divisors of 20019788640

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 43 45 48 60 72 73 80 86 90 96 103 120 129 144 146 160 172 180 206 215 219 240 258 288 292 309 344 360 365 387 412 430 438 480 515 516 584 618 645 657 688 720 730 774 824 860 876 927 1030 1032 1095 1168 1236 1290 1314 1376 1440 1460 1545 1548 1648 1720 1752 1849 1854 1935 2060 2064 2190 2336 2472 2580 2628 2920 3090 3096 3139 3285 3296 3440 3504 3698 3708 3870 4120 4128 4380 4429 4635 4944 5160 5256 5547 5840 6180 6192 6278 6570 6880 7008 7396 7416 7519 7740 8240 8760 8858 9245 9270 9417 9888 10320 10512 11094 11680 12360 12384 12556 13140 13287 14792 14832 15038 15480 15695 16480 16641 17520 17716 18490 18540 18834 20640 21024 22145 22188 22557 24720 25112 26280 26574 27735 28251 29584 29664 30076 30960 31390 33282 35040 35432 36980 37080 37595 37668 39861 44290 44376 45114 47085 49440 50224 52560 53148 55470 56502 59168 60152 61920 62780 66435 66564 67671 70864 73960 74160 75190 75336 79722 83205 88580 88752 90228 94170 100448 105120 106296 110940 112785 113004 120304 125560 132870 133128 134977 135342 141255 141728 147920 148320 150380 150672 159444 166410 177160 177504 180456 188340 190447 199305 212592 221880 225570 226008 240608 251120 265740 266256 269954 270684 282510 295840 300760 301344 318888 323317 332820 338355 354320 360912 376680 380894 398610 404931 425184 443760 451140 452016 502240 531480 532512 539908 541368 565020 571341 601520 637776 646634 665640 674885 676710 708640 721824 753360 761788 797220 809862 887520 902280 904032 952235 969951 1062960 1079816 1082736 1130040 1142682 1203040 1214793 1275552 1293268 1331280 1349770 1353420 1506720 1523576 1594440 1616585 1619724 1714023 1804560 1904470 1939902 2024655 2125920 2159632 2165472 2260080 2285364 2429586 2586536 2662560 2699540 2706840 2856705 2909853 3047152 3188880 3233170 3239448 3428046 3609120 3808940 3879804 4049310 4319264 4520160 4570728 4849755 4859172 5173072 5399080 5413680 5713410 5819706 6073965 6094304 6377760 6466340 6478896 6856092 7617880 7759608 8098620 8570115 9141456 9699510 9718344 10346144 10798160 10827360 11426820 11639412 12147930 12932680 12957792 13712184 13902631 14549265 15235760 15519216 16197240 17140230 18282912 19399020 19436688 21596320 22853640 23278824 24295860 25865360 27424368 27805262 29098530 30471520 31038432 32394480 34280460 38798040 38873376 41707893 45707280 46557648 48591720 51730720 54848736 55610524 58197060 64788960 68560920 69513155 77596080 83415786 91414560 93115296 97183440 111221048 116394120 125123679 137121840 139026310 155192160 166831572 194366880 208539465 222442096 232788240 250247358 274243680 278052620 333663144 417078930 444884192 465576480 500494716 556105240 625618395 667326288 834157860 1000989432 1112210480 1251236790 1334652576 1668315720 2001978864 2224420960 2502473580 3336631440 4003957728 5004947160 6673262880 10009894320 20019788640
• Sum of all divisors σ(n): 71589746592
• Sum of proper divisors (its aliquot sum) s(n): 51569957952
• 20019788640 is an abundant number, because the sum of its proper divisors (51569957952) is greater than itself. Its abundance is 31550169312

Bases of 20019788640

• Binary: 10010101001010001011011101101100000₂
• Hexadecimal: 0x4A945BB60
• Base-36: 9739JS0

Squares and roots of 20019788640

• 20019788640 squared (20019788640²) is 400791937190273049600
• 20019788640 cubed (20019788640³) is 8023769871165421916880236544000
• The square root of 20019788640 is 141491.3023475293
• The cube root of 20019788640 is 2715.3125653799

Scales and comparisons

• 20,019,788,640 seconds is equal to 636 years, 29 weeks, 3 days, 12 hours, 24 minutes.
• To count from 1 to 20,019,788,640 would take you about one thousand, two hundred seventy-three 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 20019788640 cubic inches would be around 226.3 feet tall.

Recreational maths with 20019788640

• 20019788640 backwards is 04688791002
• 20019788640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20019788640's digits is 45
• More coming soon!