20491081000

Names of 20491081000

• Cardinal: 20491081000 can be written as Twenty billion, four hundred ninety-one million, eighty-one thousand.

Scientific notation

• Scientific notation: 2.0491081 × 10¹⁰

Factors of 20491081000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 199

Divisors of 20491081000

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 8 10 13 20 25 26 29 37 40 50 52 58 65 74 100 104 113 116 125 130 145 148 169 185 200 226 232 250 260 290 296 325 338 370 377 452 481 500 520 565 580 650 676 725 740 754 845 904 925 962 1000 1073 1130 1160 1300 1352 1450 1469 1480 1508 1625 1690 1850 1885 1924 2146 2260 2405 2600 2825 2900 2938 3016 3250 3277 3380 3625 3700 3770 3848 4181 4225 4292 4520 4625 4810 4901 5365 5650 5800 5876 6253 6500 6554 6760 7250 7345 7400 7540 8362 8450 8584 9250 9425 9620 9802 10730 11300 11752 12025 12506 13000 13108 13949 14125 14500 14690 15080 16385 16724 16900 18500 18850 19097 19240 19604 20905 21125 21460 22600 24050 24505 25012 26216 26825 27898 28250 29000 29380 31265 32770 33448 33800 36725 37000 37700 38194 39208 41810 42250 42601 42920 47125 48100 49010 50024 53650 54353 55796 56500 58760 60125 62530 65540 69745 73450 75400 76388 81925 83620 84500 85202 94250 95485 96200 98020 104525 107300 108706 111592 113000 120250 121249 122525 125060 131080 134125 139490 146900 152776 156325 163850 167240 169000 170404 181337 183625 188500 190970 196040 209050 213005 214600 217412 240500 242498 245050 250120 268250 271765 278980 293800 312650 327700 340808 348725 362674 367250 377000 381940 409625 418100 426010 434824 477425 481000 484996 490100 522625 536500 543530 553813 557960 606245 612625 625300 655400 697450 706589 725348 734500 763880 781625 819250 836200 852020 906685 954850 969992 980200 1045250 1065025 1073000 1087060 1107626 1212490 1225250 1250600 1358825 1394900 1413178 1450696 1469000 1563250 1576237 1638500 1704040 1743625 1813370 1909700 2090500 2130050 2174120 2215252 2387125 2424980 2450500 2717650 2769065 2789800 2826356 3031225 3126500 3152474 3277000 3487250 3532945 3626740 3819400 4181000 4260100 4430504 4533425 4774250 4849960 4901000 5325125 5435300 5538130 5652712 6062450 6253000 6304948 6794125 6974500 7065890 7253480 7881185 8520200 9066850 9548500 10650250 10870600 11076260 12124900 12609896 13588250 13845325 13949000 14131780 15156125 15762370 17664725 18133700 19097000 20491081 21300500 22152520 22667125 24249800 27176500 27690650 28263560 30312250 31524740 35329450 36267400 39405925 40982162 42601000 45334250 54353000 55381300 60624500 63049480 69226625 70658900 78811850 81964324 88323625 90668500 102455405 110762600 121249000 138453250 141317800 157623700 163928648 176647250 181337000 197029625 204910810 276906500 315247400 353294500 394059250 409821620 512277025 553813000 706589000 788118500 819643240 1024554050 1576237000 2049108100 2561385125 4098216200 5122770250 10245540500 20491081000
• Sum of all divisors σ(n): 55651471200
• Sum of proper divisors (its aliquot sum) s(n): 35160390200
• 20491081000 is an abundant number, because the sum of its proper divisors (35160390200) is greater than itself. Its abundance is 14669309200

Bases of 20491081000

• Binary: 10011000101010111010001010100101000₂
• Hexadecimal: 0x4C55D1528
• Base-36: 9EVUZAG

Squares and roots of 20491081000

• 20491081000 squared (20491081000²) is 419884400548561000000
• 20491081000 cubed (20491081000³) is 8603885262277007884441000000000
• The square root of 20491081000 is 143147.0607452351
• The cube root of 20491081000 is 2736.4548695547

Scales and comparisons

• 20,491,081,000 seconds is equal to 651 years, 28 weeks, 5 days, 6 hours, 56 minutes, 40 seconds.
• To count from 1 to 20,491,081,000 would take you about one thousand, three hundred 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 20491081000 cubic inches would be around 228 feet tall.

Recreational maths with 20491081000

• 20491081000 backwards is 00018019402
• 20491081000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20491081000's digits is 25
• More coming soon!