28738448640

Names of 28738448640

• Cardinal: 28738448640 can be written as Twenty-eight billion, seven hundred thirty-eight million, four hundred forty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.873844864 × 10¹⁰

Factors of 28738448640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 463

Divisors of 28738448640

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 53 55 60 64 66 72 80 88 90 96 99 106 110 120 121 128 132 144 159 160 165 176 180 192 198 212 220 240 242 256 264 265 288 318 320 330 352 360 363 384 389 396 424 440 477 480 484 495 528 530 576 583 605 636 640 660 704 720 726 768 778 792 795 848 880 954 960 968 990 1056 1060 1089 1152 1166 1167 1210 1272 1280 1320 1408 1440 1452 1556 1584 1590 1696 1749 1760 1815 1908 1920 1936 1945 1980 2112 2120 2178 2304 2332 2334 2385 2420 2544 2640 2816 2880 2904 2915 3112 3168 3180 3392 3498 3501 3520 3630 3816 3840 3872 3890 3960 4224 4240 4279 4356 4664 4668 4770 4840 5088 5247 5280 5445 5760 5808 5830 5835 6224 6336 6360 6413 6784 6996 7002 7040 7260 7632 7744 7780 7920 8448 8480 8558 8712 8745 9328 9336 9540 9680 10176 10494 10560 10890 11520 11616 11660 11670 12448 12672 12720 12826 12837 13568 13992 14004 14080 14520 15264 15488 15560 15840 16960 17116 17424 17490 17505 18656 18672 19080 19239 19360 20352 20617 20988 21120 21395 21780 23232 23320 23340 24896 25344 25440 25652 25674 26235 27984 28008 29040 30528 30976 31120 31680 32065 33920 34232 34848 34980 35010 37312 37344 38160 38478 38511 38720 40704 41234 41976 42240 42790 43560 46464 46640 46680 47069 49792 50880 51304 51348 52470 55968 56016 57717 58080 61056 61851 62240 63360 64130 64185 67840 68464 69696 69960 70020 74624 74688 76320 76956 77022 77440 82468 83952 85580 87120 92928 93280 93360 94138 96195 99584 101760 102608 102696 103085 104940 111936 112032 115434 116160 122112 123702 124480 126720 128260 128370 136928 139392 139920 140040 141207 149248 149376 152640 153912 154044 154880 164936 167904 171160 174240 185553 186560 186720 188276 192390 192555 203520 205216 205392 206170 209880 223872 224064 226787 230868 232320 235345 247404 248960 256520 256740 273856 278784 279840 280080 282414 288585 298752 305280 307824 308088 309255 329872 335808 342320 348480 371106 373120 373440 376552 384780 385110 410432 410784 412340 419760 423621 447744 448128 453574 461736 464640 470690 494808 497920 513040 513480 547712 559680 560160 564828 577170 610560 615648 616176 618510 659744 671616 680361 684640 696960 706035 742212 746240 746880 753104 769560 770220 820864 821568 824680 839520 847242 896256 907148 923472 927765 941380 989616 1026080 1026960 1095424 1119360 1120320 1129656 1133935 1154340 1231296 1232352 1237020 1319488 1343232 1360722 1369280 1393920 1412070 1484424 1493760 1506208 1539120 1540440 1641728 1643136 1649360 1679040 1694484 1814296 1846944 1855530 1882760 1979232 2041083 2052160 2053920 2118105 2238720 2240640 2259312 2267870 2308680 2462592 2464704 2474040 2494657 2638976 2721444 2738560 2824140 2968848 3012416 3078240 3080880 3286272 3298720 3358080 3388968 3401805 3628592 3693888 3711060 3765520 3958464 4082166 4104320 4107840 4236210 4481280 4518624 4535740 4617360 4925184 4929408 4948080 4989314 5277952 5442888 5477120 5648280 5937696 6024832 6156480 6161760 6597440 6716160 6777936 6803610 7257184 7387776 7422120 7483971 7531040 7916928 8164332 8208640 8215680 8472420 9037248 9071480 9234720 9858816 9896160 9978628 10205415 10885776 11296560 11875392 12049664 12312960 12323520 12473285 13194880 13555872 13607220 14514368 14775552 14844240 14967942 15062080 15833856 16328664 16431360 16944840 18074496 18142960 18469440 19792320 19957256 20410830 21771552 22451913 22593120 23750784 24625920 24647040 24946570 26389760 27111744 27214440 29028736 29688480 29935884 30124160 32657328 33889680 36148992 36285920 36938880 37419855 39584640 39914512 40821660 43543104 44903826 45186240 47501568 49294080 49893140 54223488 54428880 58057472 59376960 59871768 60248320 65314656 67779360 72571840 73877760 74839710 79169280 79829024 81643320 87086208 89807652 90372480 99786280 108446976 108857760 112259565 118753920 119743536 130629312 135558720 145143680 149679420 159658048 163286640 174172416 179615304 180744960 199572560 217715520 224519130 237507840 239487072 261258624 271117440 290287360 299358840 319316096 326573280 359230608 399145120 435431040 449038260 478974144 522517248 542234880 598717680 638632192 653146560 718461216 798290240 870862080 898076520 957948288 1197435360 1306293120 1436922432 1596580480 1796153040 1915896576 2394870720 2612586240 2873844864 3193160960 3592306080 4789741440 5747689728 7184612160 9579482880 14369224320 28738448640
• Sum of all divisors σ(n): 111641460840
• Sum of proper divisors (its aliquot sum) s(n): 82903012200
• 28738448640 is an abundant number, because the sum of its proper divisors (82903012200) is greater than itself. Its abundance is 54164563560

Bases of 28738448640

• Binary: 11010110000111100011110110100000000₂
• Hexadecimal: 0x6B0F1ED00
• Base-36: D7A4OW0

Squares and roots of 28738448640

• 28738448640 squared (28738448640²) is 825898430233917849600
• 28738448640 cubed (28738448640³) is 23735039619134071306708844544000
• The square root of 28738448640 is 169524.1830536281
• The cube root of 28738448640 is 3063.0524967157

Scales and comparisons

• 28,738,448,640 seconds is equal to 913 years, 41 weeks, 1 day, 22 hours, 24 minutes.
• To count from 1 to 28,738,448,640 would take you about one thousand, eight hundred twenty-seven 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 28738448640 cubic inches would be around 255.3 feet tall.

Recreational maths with 28738448640

• 28738448640 backwards is 04684483782
• The number of decimal digits it has is: 11
• The sum of 28738448640's digits is 54
• More coming soon!