20287390464

Names of 20287390464

• Cardinal: 20287390464 can be written as Twenty billion, two hundred eighty-seven million, three hundred ninety thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 2.0287390464 × 10¹⁰

Factors of 20287390464

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 334

Divisors of 20287390464

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 88 96 99 108 121 127 128 132 144 176 191 192 198 216 242 254 256 264 288 297 352 363 381 382 384 396 432 484 508 528 573 576 594 704 726 762 764 768 792 864 968 1016 1056 1089 1143 1146 1152 1188 1397 1408 1452 1524 1528 1584 1719 1728 1936 2032 2101 2112 2178 2286 2292 2304 2376 2794 2816 2904 3048 3056 3168 3267 3429 3438 3456 3872 4064 4191 4202 4224 4356 4572 4584 4752 5157 5588 5808 6096 6112 6303 6336 6534 6858 6876 6912 7744 8128 8382 8404 8448 8712 9144 9168 9504 10314 11176 11616 12192 12224 12573 12606 12672 13068 13716 13752 15367 15488 16256 16764 16808 17424 18288 18336 18909 19008 20628 22352 23111 23232 24257 24384 24448 25146 25212 25344 26136 27432 27504 30734 30976 32512 33528 33616 34848 36576 36672 37719 37818 38016 41256 44704 46101 46222 46464 48514 48768 48896 50292 50424 52272 54864 55008 56727 61468 67056 67232 69333 69696 72771 73152 73344 75438 75636 76032 82512 89408 92202 92444 92928 97028 97536 100584 100848 104544 109728 110016 113454 122936 134112 134464 138303 138666 139392 145542 146304 146688 150876 151272 165024 178816 184404 184888 194056 201168 201696 207999 209088 218313 219456 220032 226908 245872 266827 268224 268928 276606 277332 278784 291084 292608 301752 302544 330048 357632 368808 369776 388112 402336 403392 414909 415998 418176 436626 438912 440064 453816 491744 533654 536448 537856 553212 554664 582168 603504 605088 623997 654939 660096 737616 739552 776224 800481 804672 806784 829818 831996 836352 873252 877824 907632 983488 1067308 1072896 1106424 1109328 1164336 1207008 1210176 1247994 1309878 1320192 1475232 1479104 1552448 1600962 1609344 1613568 1659636 1663992 1746504 1815264 1966976 2134616 2212848 2218656 2328672 2401443 2414016 2420352 2495988 2619756 2935097 2950464 2958208 3104896 3201924 3218688 3319272 3327984 3493008 3630528 3933952 4269232 4425696 4437312 4657344 4802886 4828032 4840704 4991976 5239512 5870194 5900928 5916416 6209792 6403848 6638544 6655968 6986016 7204329 7261056 8538464 8805291 8851392 8874624 9314688 9605772 9656064 9983952 10479024 11740388 11801856 12807696 13277088 13311936 13972032 14408658 14522112 17076928 17610582 17702784 17749248 18629376 19211544 19967904 20958048 23480776 25615392 26415873 26554176 26623872 27944064 28817316 34153856 35221164 35405568 38423088 39935808 41916096 46961552 51230784 52831746 53108352 53247744 55888128 57634632 68307712 70442328 76846176 79247619 79871616 83832192 93923104 102461568 105663492 106216704 115269264 140884656 153692352 158495238 159743232 167664384 187846208 204923136 211326984 230538528 281769312 307384704 316990476 375692416 422653968 461077056 563538624 614769408 633980952 751384832 845307936 922154112 1127077248 1267961904 1690615872 1844308224 2254154496 2535923808 3381231744 5071847616 6762463488 10143695232 20287390464
• Sum of all divisors σ(n): 66810347520
• Sum of proper divisors (its aliquot sum) s(n): 46522957056
• 20287390464 is an abundant number, because the sum of its proper divisors (46522957056) is greater than itself. Its abundance is 26235566592

Bases of 20287390464

• Binary: 10010111001001110010000001100000000₂
• Hexadecimal: 0x4B9390300
• Base-36: 9BIL6O0

Squares and roots of 20287390464

• 20287390464 squared (20287390464²) is 411578211838798135296
• 20287390464 cubed (20287390464³) is 8349847890048605195225052217344
• The square root of 20287390464 is 142433.8108175163
• The cube root of 20287390464 is 2727.3574622691

Scales and comparisons

• 20,287,390,464 seconds is equal to 645 years, 3 weeks, 6 days, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 20,287,390,464 would take you about one thousand, two hundred ninety 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 20287390464 cubic inches would be around 227.3 feet tall.

Recreational maths with 20287390464

• 20287390464 backwards is 46409378202
• The number of decimal digits it has is: 11
• The sum of 20287390464's digits is 45
• More coming soon!