28664979840

Names of 28664979840

• Cardinal: 28664979840 can be written as Twenty-eight billion, six hundred sixty-four million, nine hundred seventy-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.866497984 × 10¹⁰

Factors of 28664979840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 215

Divisors of 28664979840

• Number of divisors d(n): 896
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 64 67 70 72 80 81 84 90 96 105 108 112 120 126 128 131 134 135 140 144 160 162 168 180 189 192 201 210 216 224 240 243 252 262 268 270 280 288 315 320 324 335 336 360 378 384 393 402 405 420 432 448 469 480 486 504 524 536 540 560 567 576 603 630 640 648 655 670 672 720 729 756 786 804 810 840 864 896 917 938 945 960 972 1005 1008 1048 1072 1080 1120 1134 1152 1179 1206 1215 1260 1296 1310 1340 1344 1407 1440 1458 1512 1572 1608 1620 1680 1701 1728 1809 1834 1876 1890 1920 1944 1965 2010 2016 2096 2144 2160 2240 2268 2345 2358 2412 2430 2520 2592 2620 2680 2688 2751 2814 2835 2880 2916 3015 3024 3144 3216 3240 3360 3402 3456 3537 3618 3645 3668 3752 3780 3888 3930 4020 4032 4192 4221 4288 4320 4480 4536 4585 4690 4716 4824 4860 5040 5103 5184 5240 5360 5427 5502 5628 5670 5760 5832 5895 6030 6048 6288 6432 6480 6720 6804 7035 7074 7236 7290 7336 7504 7560 7776 7860 8040 8064 8253 8384 8442 8505 8576 8640 8777 9045 9072 9170 9380 9432 9648 9720 10080 10206 10368 10480 10611 10720 10854 11004 11256 11340 11664 11790 12060 12096 12576 12663 12864 12960 13440 13608 13755 14070 14148 14472 14580 14672 15008 15120 15552 15720 16080 16281 16506 16768 16884 17010 17280 17554 17685 18090 18144 18340 18760 18864 19296 19440 20160 20412 20960 21105 21222 21440 21708 22008 22512 22680 23328 23580 24120 24192 24759 25152 25326 25515 25728 25920 26331 27135 27216 27510 28140 28296 28944 29160 29344 30016 30240 31104 31440 31833 32160 32562 33012 33768 34020 35108 35370 36180 36288 36680 37520 37728 37989 38592 38880 40320 40824 41265 41920 42210 42444 42880 43416 43885 44016 45024 45360 46656 47160 48240 48843 49518 50304 50652 51030 51840 52662 53055 54270 54432 55020 56280 56592 57888 58320 58688 60032 60480 61439 62880 63315 63666 64320 65124 66024 67536 68040 70216 70740 72360 72576 73360 74277 75040 75456 75978 77184 77760 78993 81405 81648 82530 83840 84420 84888 86832 87770 88032 90048 90720 93312 94320 95499 96480 97686 99036 101304 102060 105324 106110 108540 108864 110040 112560 113184 113967 115776 116640 117376 120960 122878 123795 125760 126630 127332 128640 130248 131655 132048 135072 136080 140432 141480 144720 146720 148554 150080 150912 151956 155520 157986 159165 162810 163296 165060 168840 169776 173664 175540 176064 180096 181440 184317 188640 189945 190998 192960 195372 198072 202608 204120 210648 212220 217080 217728 220080 222831 225120 226368 227934 231552 233280 236979 244215 245756 247590 251520 253260 254664 260496 263310 264096 270144 272160 280864 282960 289440 293440 297108 300160 303912 307195 315972 318330 325620 326592 330120 337680 339552 341901 347328 351080 352128 362880 368634 371385 377280 379890 381996 385920 390744 394965 396144 405216 408240 421296 424440 434160 440160 445662 450240 452736 455868 466560 473958 477495 488430 491512 495180 506520 509328 520992 526620 528192 540288 544320 552951 561728 565920 569835 578880 586880 594216 607824 614390 631944 636660 651240 653184 660240 668493 675360 679104 683802 694656 702160 710937 737268 742770 754560 759780 763992 781488 789930 792288 810432 816480 842592 848880 868320 880320 891324 900480 911736 921585 947916 954990 976860 983024 990360 1013040 1018656 1041984 1053240 1056384 1088640 1105902 1114155 1123456 1131840 1139670 1157760 1184895 1188432 1215648 1228780 1263888 1273320 1302480 1320480 1336986 1350720 1358208 1367604 1404320 1421874 1474536 1485540 1519560 1527984 1562976 1579860 1584576 1620864 1632960 1658853 1685184 1697760 1709505 1736640 1760640 1782648 1823472 1843170 1895832 1909980 1953720 1966048 1980720 2026080 2037312 2083968 2106480 2132811 2211804 2228310 2263680 2279340 2369790 2376864 2431296 2457560 2527776 2546640 2604960 2640960 2673972 2701440 2735208 2764755 2808640 2843748 2949072 2971080 3039120 3055968 3125952 3159720 3169152 3265920 3317706 3342465 3370368 3395520 3419010 3473280 3554685 3565296 3646944 3686340 3791664 3819960 3907440 3932096 3961440 4052160 4074624 4212960 4265622 4423608 4456620 4558680 4739580 4753728 4862592 4915120 4976559 5055552 5093280 5209920 5281920 5347944 5470416 5529510 5617280 5687496 5898144 5942160 6078240 6111936 6251904 6319440 6398433 6635412 6684930 6791040 6838020 7109370 7130592 7293888 7372680 7583328 7639920 7814880 7864192 7922880 8104320 8294265 8425920 8531244 8847216 8913240 9117360 9479160 9507456 9830240 9953118 10111104 10186560 10419840 10664055 10695888 10940832 11059020 11374992 11796288 11884320 12156480 12223872 12638880 12796866 13270824 13369860 13676040 14218740 14261184 14587776 14745360 14929677 15166656 15279840 15629760 15845760 16588530 16851840 17062488 17694432 17826480 18234720 18958320 19660480 19906236 20373120 21328110 21391776 21881664 22118040 22749984 23592576 23768640 24312960 24882795 25277760 25593732 26541648 26739720 27352080 28437480 28522368 29490720 29859354 30333312 30559680 31259520 31992165 33177060 34124976 35388864 35652960 36469440 37916640 39320960 39812472 42656220 42783552 43763328 44236080 44789031 45499968 47537280 49765590 50555520 51187464 53083296 53479440 54704160 56874960 58981440 59718708 61119360 63984330 66354120 68249952 70777728 71305920 72938880 74648385 75833280 79624944 85312440 85567104 88472160 89578062 90999936 99531180 102374928 106166592 106958880 109408320 113749920 117962880 119437416 127968660 132708240 136499904 142611840 149296770 151666560 159249888 170624880 176944320 179156124 199062360 204749856 212333184 213917760 218816640 223945155 227499840 238874832 255937320 265416480 272999808 298593540 318499776 341249760 353888640 358312248 398124720 409499712 427835520 447890310 454999680 477749664 511874640 530832960 597187080 636999552 682499520 716624496 796249440 818999424 895780620 955499328 1023749280 1061665920 1194374160 1364999040 1433248992 1592498880 1791561240 1910998656 2047498560 2388748320 2866497984 3184997760 3583122480 4094997120 4777496640 5732995968 7166244960 9554993280 14332489920 28664979840
• Sum of all divisors σ(n): 120083800320
• Sum of proper divisors (its aliquot sum) s(n): 91418820480
• 28664979840 is an abundant number, because the sum of its proper divisors (91418820480) is greater than itself. Its abundance is 62753840640

Bases of 28664979840

• Binary: 11010101100100100001110000110000000₂
• Hexadecimal: 0x6AC90E180
• Base-36: D62E000

Squares and roots of 28664979840

• 28664979840 squared (28664979840²) is 821681069227606425600
• 28664979840 cubed (28664979840³) is 23553471284318982561278459904000
• The square root of 28664979840 is 169307.3531775863
• The cube root of 28664979840 is 3060.4400751157

Scales and comparisons

• 28,664,979,840 seconds is equal to 911 years, 23 weeks, 5 days, 14 hours, 24 minutes.
• To count from 1 to 28,664,979,840 would take you about one thousand, eight hundred twenty-two 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 28664979840 cubic inches would be around 255 feet tall.

Recreational maths with 28664979840

• 28664979840 backwards is 04897946682
• 28664979840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28664979840's digits is 63
• More coming soon!