28001380680

Names of 28001380680

• Cardinal: 28001380680 can be written as Twenty-eight billion, one million, three hundred eighty thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.800138068 × 10¹⁰

Factors of 28001380680

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 551

Divisors of 28001380680

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 17 18 20 21 24 26 28 30 34 35 36 39 40 42 45 51 52 56 60 63 65 68 70 72 78 84 85 90 91 102 104 105 117 119 120 126 130 136 137 140 153 156 168 170 180 182 195 204 210 221 234 238 252 255 260 273 274 280 306 312 315 340 357 360 364 367 390 408 411 420 442 455 468 476 504 510 520 546 548 585 595 612 630 663 680 685 714 728 734 765 780 819 822 840 884 910 936 952 959 1020 1071 1092 1096 1101 1105 1170 1190 1224 1233 1260 1326 1365 1370 1428 1468 1530 1547 1560 1638 1644 1768 1781 1785 1820 1835 1918 1989 2040 2055 2142 2184 2202 2210 2329 2340 2380 2466 2520 2569 2652 2730 2740 2856 2877 2936 3060 3094 3276 3288 3303 3315 3562 3570 3640 3670 3836 3978 4095 4110 4284 4404 4420 4641 4658 4680 4760 4771 4795 4932 5138 5304 5343 5355 5460 5480 5505 5754 6120 6165 6188 6239 6552 6606 6630 6987 7124 7140 7340 7672 7707 7735 7956 8190 8220 8568 8631 8808 8840 8905 9282 9316 9542 9590 9864 9945 10276 10686 10710 10920 11010 11508 11645 12330 12376 12467 12478 12845 13212 13260 13923 13974 14248 14280 14313 14385 14680 15414 15470 15912 16029 16303 16380 16440 16515 17262 17810 18564 18632 18717 19084 19180 19890 20552 20961 21372 21420 22020 23016 23121 23205 23290 23855 24660 24934 24956 25690 26424 26520 26715 27846 27948 28626 28770 30277 30828 30940 31195 32058 32606 32760 33030 33397 34524 34935 35620 37128 37401 37434 38168 38360 38535 39780 41922 42744 42840 42939 43155 43673 44040 46242 46410 46580 47710 48909 49320 49868 49912 50279 51380 53430 55692 55896 56151 57252 57540 60554 61656 61880 62335 62390 64116 65212 66060 66794 69048 69615 69870 71240 71565 74802 74868 77070 79560 80145 81107 81515 83844 85878 86310 87346 90831 92484 92820 93160 93585 95420 97818 99736 100191 100558 102760 104805 106860 111384 112203 112302 114504 115080 115605 121108 124670 124780 128232 130424 131019 132120 133588 139230 139740 143130 146727 149604 149736 150837 151385 154140 160290 162214 163030 166985 167688 171756 172620 174692 181662 184968 185640 187005 187170 190840 195636 200382 201116 209610 211939 213720 214695 218365 224406 224604 231210 242216 243321 244545 249340 249560 251395 262038 267176 272493 278460 279480 280755 286260 293454 299208 300573 301674 302770 308280 320580 324428 326060 333970 343512 345240 349384 351953 363324 374010 374340 391272 393057 400764 402232 405535 419220 423878 429390 436730 448812 449208 452511 454155 462420 486642 489090 498680 500955 502790 524076 544986 556920 561015 561510 567749 572520 586908 601146 603348 605540 635817 641160 648856 652120 653627 655095 667940 703906 726648 729963 733635 748020 748680 754185 786114 801528 811070 838440 847756 854743 858780 873460 897624 905022 908310 924840 973284 978180 1001910 1005580 1048152 1055859 1059695 1089972 1122030 1123020 1135498 1173816 1202292 1206696 1211080 1216605 1271634 1307254 1310190 1335880 1362465 1407812 1459926 1467270 1496040 1502865 1508370 1572228 1622140 1695512 1703247 1709486 1717560 1746920 1759765 1810044 1816620 1907451 1946568 1956360 1960881 1965285 2003820 2011160 2111718 2119390 2179944 2244060 2246040 2262555 2270996 2404584 2433210 2543268 2564229 2614508 2620380 2724930 2815624 2838745 2919852 2934540 3005730 3016740 3144456 3167577 3179085 3244280 3268135 3406494 3418972 3519530 3620088 3633240 3649815 3814902 3921762 3930570 4007640 4223436 4238780 4273715 4488120 4525110 4541992 4575389 4866420 5086536 5109741 5128458 5229016 5240760 5279295 5449860 5677490 5839704 5869080 5882643 5983201 6011460 6033480 6335154 6358170 6536270 6812988 6837944 7039060 7299630 7629804 7692687 7843524 7861140 8446872 8477560 8516235 8547430 9050220 9150778 9537255 9732840 9804405 10219482 10256916 10558590 10899720 11111659 11354980 11765286 11966402 12022920 12670308 12716340 12821145 13072540 13625976 13726167 14078120 14599260 15259608 15385374 15687048 15722280 15837885 17032470 17094860 17949603 18100440 18301556 19074510 19608810 20438964 20513832 21117180 22223318 22709960 22876945 23530572 23932804 25340616 25432680 25548705 25642290 26145080 27452334 29198520 29413215 29916005 30770748 31675770 33334977 34064940 34189720 35899206 36603112 38149020 38463435 39217620 40877928 41178501 42234360 44446636 45753890 47061144 47865608 51097410 51284580 53848809 54904668 55558295 58826430 59832010 61541496 63351540 66669954 68129880 68630835 71798412 76298040 76926870 77781613 78435240 82357002 88893272 89748015 91507780 100004931 102194820 102569160 107697618 109809336 111116590 117652860 119664020 126703080 133339908 137261670 143596824 153853740 155563226 164714004 166674885 179496030 183015560 200009862 204389640 205892505 215395236 222233180 233344839 235305720 239328040 266679816 269244045 274523340 307707480 311126452 329428008 333349770 358992060 388908065 400019724 411785010 430790472 444466360 466689678 500024655 538488090 549046680 622252904 666699540 700034517 717984120 777816130 800039448 823570020 933379356 1000049310 1076976180 1166724195 1333399080 1400069034 1555632260 1647140040 1866758712 2000098620 2153952360 2333448390 2800138068 3111264520 3500172585 4000197240 4666896780 5600276136 7000345170 9333793560 14000690340 28001380680
• Sum of all divisors σ(n): 119785236480
• Sum of proper divisors (its aliquot sum) s(n): 91783855800
• 28001380680 is an abundant number, because the sum of its proper divisors (91783855800) is greater than itself. Its abundance is 63782475120

Bases of 28001380680

• Binary: 11010000101000000110010100101001000₂
• Hexadecimal: 0x685032948
• Base-36: CV3ARM0

Squares and roots of 28001380680

• 28001380680 squared (28001380680²) is 784077319986277262400
• 28001380680 cubed (28001380680³) is 21955247519489922000490650432000
• The square root of 28001380680 is 167336.1308265491
• The cube root of 28001380680 is 3036.6388824559

Scales and comparisons

• 28,001,380,680 seconds is equal to 890 years, 18 weeks, 4 days, 1 hour, 18 minutes.
• To count from 1 to 28,001,380,680 would take you about one thousand, seven hundred eighty 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 28001380680 cubic inches would be around 253.1 feet tall.

Recreational maths with 28001380680

• 28001380680 backwards is 08608310082
• 28001380680 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28001380680's digits is 36
• More coming soon!