28121249520

Names of 28121249520

• Cardinal: 28121249520 can be written as Twenty-eight billion, one hundred twenty-one million, two hundred forty-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.812124952 × 10¹⁰

Factors of 28121249520

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 596

Divisors of 28121249520

• Number of divisors d(n): 800
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 35 36 39 40 42 45 48 52 54 56 60 63 65 70 72 78 80 81 84 90 91 103 104 105 108 112 117 120 126 130 135 140 144 156 162 168 180 182 189 195 206 208 210 216 234 240 252 260 270 273 280 309 312 315 324 336 351 360 364 378 390 405 412 420 432 455 463 468 504 515 520 540 546 560 567 585 618 624 630 648 702 720 721 728 756 780 810 819 824 840 910 926 927 936 945 1008 1030 1040 1053 1080 1092 1134 1170 1236 1260 1296 1339 1365 1389 1404 1442 1456 1512 1545 1560 1620 1638 1648 1680 1755 1820 1852 1854 1872 1890 2060 2106 2160 2163 2184 2268 2315 2340 2457 2472 2520 2678 2730 2778 2781 2808 2835 2884 3024 3090 3120 3240 3241 3276 3510 3605 3640 3704 3708 3780 4017 4095 4120 4167 4212 4326 4368 4536 4630 4635 4680 4914 4944 5040 5265 5356 5460 5556 5562 5616 5670 5768 6019 6180 6480 6482 6489 6552 6695 6945 7020 7210 7280 7371 7408 7416 7560 8034 8190 8240 8334 8343 8424 8652 9072 9260 9270 9360 9373 9723 9828 10530 10712 10815 10920 11112 11124 11340 11536 12038 12051 12285 12360 12501 12964 12978 13104 13390 13890 13905 14040 14420 14742 14832 15120 16068 16205 16380 16668 16686 16848 17304 18057 18520 18540 18746 19446 19467 19656 20085 20835 21060 21424 21630 21840 22224 22248 22680 24076 24102 24570 24720 25002 25928 25956 26780 27780 27810 28080 28119 28840 29169 29484 30095 32136 32410 32445 32760 33336 33372 34608 36114 36153 36855 37040 37080 37492 37503 38892 38934 39312 40170 41670 41715 42120 42133 43260 44496 45360 46865 47689 48152 48204 48615 49140 50004 51856 51912 53560 54171 55560 55620 56238 57680 58338 58401 58968 60190 60255 62505 64272 64820 64890 65520 66672 66744 72228 72306 73710 74160 74984 75006 77784 77868 80340 83340 83430 84240 84266 84357 86520 87507 90285 93730 95378 96304 96408 97230 97335 98280 100008 103824 107120 108342 108459 111120 111240 112476 116676 116802 117936 120380 120510 125010 126399 129640 129780 133488 140595 143067 144456 144612 145845 147420 149968 150012 155568 155736 160680 162513 166680 166860 168532 168714 173040 175014 180570 180765 187460 187515 190756 192816 194460 194670 196560 200016 210665 216684 216918 222480 224952 233352 233604 238445 240760 241020 250020 252798 253071 259280 259560 262521 270855 281190 286134 288912 289224 291690 292005 294840 300024 311472 321360 325026 333360 333720 333823 337064 337428 350028 361140 361530 374920 375030 379197 381512 388920 389340 421330 421785 429201 433368 433836 437535 449904 466704 467208 476890 481520 482040 487539 500040 505596 506142 519120 525042 541710 542295 562380 572268 578448 583380 584010 589680 600048 619957 631995 650052 667440 667646 674128 674856 700056 715335 722280 723060 749840 750060 758394 759213 763024 777840 778680 812565 842660 843570 858402 866736 867672 875070 934416 953780 964080 975078 1000080 1001469 1011192 1012284 1050084 1083420 1084590 1124760 1137591 1144536 1166760 1168020 1239914 1263990 1265355 1287603 1300104 1312605 1335292 1349712 1400112 1430670 1444560 1446120 1500120 1516788 1518426 1557360 1625130 1669115 1685320 1687140 1716804 1735344 1750140 1859871 1895985 1907560 1950156 2002938 2022384 2024568 2100168 2146005 2166840 2169180 2249520 2275182 2289072 2333520 2336040 2437695 2479828 2527980 2530710 2575206 2600208 2625210 2670584 2861340 2892240 3000240 3004407 3033576 3036852 3099785 3250260 3338230 3370640 3374280 3412773 3433608 3500280 3719742 3791970 3796065 3815120 3862809 3900312 4005876 4049136 4200336 4292010 4333680 4338360 4339699 4550364 4672080 4875390 4959656 5007345 5055960 5061420 5150412 5250420 5341168 5579613 5687955 5722680 6008814 6067152 6073704 6199570 6438015 6500520 6676460 6748560 6825546 6867216 7000560 7439484 7583940 7592130 7725618 7800624 8011752 8584020 8676720 8679398 9013221 9100728 9299355 9750780 9919312 10014690 10111920 10122840 10300824 10500840 11159226 11375910 11445360 12017628 12147408 12399140 12876030 13001040 13019097 13352920 13651092 14878968 15022035 15167880 15184260 15451236 16023504 16738839 17063865 17168040 17358796 18026442 18201456 18598710 19314045 19501560 20029380 20245680 20601648 21001680 21698495 22318452 22751820 24035256 24798280 25752060 26038194 26705840 27039663 27302184 27898065 29757936 30044070 30335760 30368520 30902472 33477678 34127730 34336080 34717592 36052884 37197420 38628090 39003120 39057291 40058760 43396990 44636904 45066105 45503640 48070512 49596560 50216517 51504120 52076388 54079326 54604368 55796130 60088140 60737040 61804944 65095485 66955356 68255460 69435184 72105768 74394840 77256180 78114582 80117520 83694195 86793980 89273808 90132210 91007280 100433034 103008240 104152776 108158652 111592260 117171873 120176280 130190970 133910712 135198315 136510920 144211536 148789680 154512360 156229164 167388390 173587960 180264420 195286455 200866068 208305552 216317304 223184520 234343746 240352560 251082585 260381940 267821424 270396630 273021840 309024720 312458328 334776780 347175920 351515619 360528840 390572910 401732136 432634608 446369040 468687492 502165170 520763880 540793260 585859365 624916656 669553560 703031238 721057680 781145820 803464272 937374984 1004330340 1041527760 1081586520 1171718730 1339107120 1406062476 1562291640 1757578095 1874749968 2008660680 2163173040 2343437460 2812124952 3124583280 3515156190 4017321360 4686874920 5624249904 7030312380 9373749840 14060624760 28121249520
• Sum of all divisors σ(n): 121637548032
• Sum of proper divisors (its aliquot sum) s(n): 93516298512
• 28121249520 is an abundant number, because the sum of its proper divisors (93516298512) is greater than itself. Its abundance is 65395048992

Bases of 28121249520

• Binary: 11010001100001010000011011011110000₂
• Hexadecimal: 0x68C2836F0
• Base-36: CX2NZ00

Squares and roots of 28121249520

• 28121249520 squared (28121249520²) is 790804674566100230400
• 28121249520 cubed (28121249520³) is 22238415575055702312407889408000
• The square root of 28121249520 is 167693.9161687149
• The cube root of 28121249520 is 3040.9658144327

Scales and comparisons

• 28,121,249,520 seconds is equal to 894 years, 8 weeks, 5 days, 10 hours, 12 minutes.
• To count from 1 to 28,121,249,520 would take you about one thousand, seven hundred eighty-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 28121249520 cubic inches would be around 253.4 feet tall.

Recreational maths with 28121249520

• 28121249520 backwards is 02594212182
• 28121249520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28121249520's digits is 36
• More coming soon!