28128980880

Names of 28128980880

• Cardinal: 28128980880 can be written as Twenty-eight billion, one hundred twenty-eight million, nine hundred eighty thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.812898088 × 10¹⁰

Factors of 28128980880

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1331

Divisors of 28128980880

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 20 21 22 24 26 28 30 31 33 35 36 39 40 42 44 45 48 52 55 56 60 62 63 65 66 70 72 77 78 80 84 88 90 91 93 99 104 105 110 112 117 120 124 126 130 132 140 143 144 154 155 156 165 168 176 180 182 186 195 198 208 210 217 220 231 234 240 248 252 260 264 273 279 280 286 308 310 312 315 330 336 341 360 364 372 385 390 396 403 420 429 434 440 455 462 465 468 495 496 504 520 528 546 558 560 572 585 616 620 624 630 651 660 682 693 715 720 728 744 770 780 792 806 819 840 858 868 880 910 924 930 936 990 1001 1008 1023 1040 1085 1092 1116 1144 1155 1170 1209 1232 1240 1259 1260 1287 1302 1320 1364 1365 1386 1395 1430 1456 1488 1540 1560 1584 1612 1638 1680 1705 1716 1736 1820 1848 1860 1872 1953 1980 2002 2015 2046 2145 2170 2184 2232 2288 2310 2340 2387 2418 2480 2518 2520 2574 2604 2640 2728 2730 2772 2790 2821 2860 3003 3069 3080 3120 3224 3255 3276 3410 3432 3465 3472 3627 3640 3696 3720 3777 3906 3960 4004 4030 4092 4095 4290 4340 4368 4433 4464 4620 4680 4774 4836 5005 5036 5040 5115 5148 5208 5456 5460 5544 5580 5642 5720 6006 6045 6138 6160 6295 6435 6448 6510 6552 6820 6864 6930 7161 7254 7280 7440 7554 7812 7920 8008 8060 8184 8190 8463 8580 8680 8813 8866 9009 9240 9360 9548 9672 9765 10010 10072 10230 10296 10416 10920 11088 11160 11284 11331 11440 11935 12012 12090 12276 12590 12870 13020 13104 13299 13640 13849 13860 14105 14322 14508 15015 15108 15345 15624 16016 16120 16367 16368 16380 16926 17160 17360 17626 17732 18018 18135 18480 18885 19096 19344 19530 20020 20144 20460 20592 21483 21840 22165 22320 22568 22662 23870 24024 24180 24552 25180 25389 25740 26040 26439 26598 27280 27698 27720 28210 28644 29016 30030 30216 30690 31031 31248 32240 32734 32760 33852 34320 35252 35464 35805 36036 36270 37770 38192 39029 39060 39897 40040 40920 41547 42315 42966 44065 44330 45045 45136 45324 47740 48048 48360 49101 49104 50360 50778 51480 52080 52878 53196 55396 55440 56420 56655 57288 58032 60060 60432 61380 62062 65468 65520 66495 67704 69245 70504 70928 71610 72072 72540 75540 78058 78120 79317 79794 80080 81835 81840 83094 84630 85932 88130 88660 90090 90648 93093 95480 96720 96943 98202 100720 101556 102960 105756 106392 107415 110792 112840 113310 114569 114576 117087 120120 122760 124124 124641 126945 130936 132195 132990 135408 138490 141008 143220 144144 145080 147303 151080 155155 156116 156240 158634 159588 163670 166188 169260 171864 176260 177320 180037 180180 181296 186186 190960 193886 195145 196404 199485 203112 207735 211512 212784 214830 221584 225680 226620 229138 234174 240240 245505 245520 248248 249282 253890 261872 264390 265980 273203 276980 279279 286440 290160 290829 294606 302160 310310 312232 317268 319176 327340 332376 338520 343707 343728 351261 352520 354640 360074 360360 372372 387772 390290 392808 396585 398970 406224 415470 423024 429319 429660 453240 458276 465465 468348 484715 491010 496496 498564 507377 507780 528780 531960 540111 546406 553960 558558 572845 572880 581658 585435 589212 620620 623205 624464 634536 638352 654680 664752 677040 687414 702522 705040 720148 720720 736515 744744 775544 780580 785616 793170 797940 819609 830940 858638 859320 872487 900185 906480 916552 930930 936696 969430 982020 997128 1014754 1015560 1031121 1057560 1063920 1080222 1092812 1107920 1117116 1145690 1163316 1170870 1178424 1241240 1246410 1260259 1269072 1287957 1309360 1366015 1374828 1396395 1405044 1440296 1454145 1473030 1489488 1522131 1551088 1561160 1586340 1595880 1620333 1639218 1661880 1717276 1718535 1718640 1744974 1756305 1800370 1833104 1861860 1873392 1938860 1964040 1994256 2029508 2031120 2062242 2115120 2146595 2160444 2185624 2234232 2291380 2326632 2341740 2356848 2458827 2482480 2492820 2520518 2536885 2575914 2700555 2732030 2749656 2792790 2810088 2880592 2908290 2946060 3005233 3044262 3122320 3172680 3191760 3240666 3278436 3323760 3434552 3437070 3489948 3512610 3551639 3600740 3723720 3780777 3863871 3877720 3928080 4059016 4098045 4124484 4293190 4320888 4362435 4371248 4468464 4566393 4582760 4653264 4683480 4917654 4985640 5041036 5073770 5151828 5155605 5401110 5464060 5499312 5581147 5585580 5620176 5816580 5892120 6010466 6088524 6301295 6345360 6439785 6481332 6556872 6869104 6874140 6979896 7025220 7103278 7201480 7447440 7561554 7610655 7727742 7755440 8101665 8118032 8196090 8248968 8586380 8641776 8724870 9015699 9132786 9165520 9366960 9835308 9971280 10082072 10147540 10303656 10311210 10654917 10802220 10928120 11162294 11171160 11342331 11633160 11784240 12020932 12177048 12294135 12602590 12879570 12962664 13113744 13748280 13959792 14050440 14206556 14402960 15026165 15123108 15221310 15455484 16203330 16392180 16497936 16743441 17172760 17449740 17758195 18031398 18265572 18903885 19319355 19670616 20164144 20295080 20607312 20622420 21309834 21604440 21856240 22324588 22342320 22684662 22831965 23266320 24041864 24354096 24588270 25205180 25759140 25925328 27047097 27496560 27905735 28100880 28413112 30052330 30246216 30442620 30910968 31964751 32406660 32784360 33486882 34345520 34899480 35516390 36062796 36531144 37807770 38638710 39068029 39341232 40590160 41244840 42619668 43208880 44649176 45078495 45369324 45663930 48083728 49176540 50230323 50410360 51518280 53274585 54094194 55811470 56711655 56826224 60104660 60492432 60885240 61821936 63929502 64813320 65568720 66973764 69798960 71032780 72125592 73062288 75615540 77277420 78136058 82489680 83717205 85239336 89298352 90156990 90738648 91327860 98353080 100460646 100820720 103036560 106549170 108188388 111622940 113423310 117204087 120209320 121770480 127859004 129626640 133947528 135235485 142065560 144251184 151231080 154554840 156272116 159823755 167434410 170478672 180313980 181477296 182655720 195340145 196706160 200921292 213098340 216376776 223245880 226846620 234408174 240418640 251151615 255718008 267895056 270470970 284131120 302462160 309109680 312544232 319647510 334868820 351612261 360627960 365311440 390680290 401842584 426196680 432753552 446491760 453693240 468816348 502303230 511436016 540941940 586020435 625088464 639295020 669737640 703224522 721255920 781360580 803685168 852393360 907386480 937632696 1004606460 1081883880 1172040870 1278590040 1339475280 1406449044 1562721160 1758061305 1875265392 2009212920 2163767760 2344081740 2557180080 2812898088 3125442320 3516122610 4018425840 4688163480 5625796176 7032245220 9376326960 14064490440 28128980880
• Sum of all divisors σ(n): 131031613440
• Sum of proper divisors (its aliquot sum) s(n): 102902632560
• 28128980880 is an abundant number, because the sum of its proper divisors (102902632560) is greater than itself. Its abundance is 74773651680

Bases of 28128980880

• Binary: 11010001100100111100010111110010000₂
• Hexadecimal: 0x68C9E2F90
• Base-36: CX79OK0

Squares and roots of 28128980880

• 28128980880 squared (28128980880²) is 791239565347405574400
• 28128980880 cubed (28128980880³) is 22256762605156681959903017472000
• The square root of 28128980880 is 167716.9665835869
• The cube root of 28128980880 is 3041.2444725957

Scales and comparisons

• 28,128,980,880 seconds is equal to 894 years, 21 weeks, 3 days, 21 hours, 48 minutes.
• To count from 1 to 28,128,980,880 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 28128980880 cubic inches would be around 253.4 feet tall.

Recreational maths with 28128980880

• 28128980880 backwards is 08808982182
• The number of decimal digits it has is: 11
• The sum of 28128980880's digits is 54
• More coming soon!