28490398920

Names of 28490398920

• Cardinal: 28490398920 can be written as Twenty-eight billion, four hundred ninety million, three hundred ninety-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.849039892 × 10¹⁰

Factors of 28490398920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 371

Divisors of 28490398920

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 27 30 36 38 40 45 54 57 60 61 72 76 81 90 95 108 114 120 122 135 152 162 171 180 183 190 216 228 243 244 270 281 285 305 324 342 360 366 380 405 456 486 488 513 540 549 562 570 610 648 684 729 732 760 810 843 855 915 972 1026 1080 1098 1124 1140 1159 1215 1220 1368 1405 1458 1464 1539 1620 1647 1686 1710 1830 1944 2052 2187 2196 2248 2280 2318 2430 2440 2529 2565 2745 2810 2916 3078 3240 3294 3372 3420 3477 3645 3660 4104 4215 4374 4392 4617 4636 4860 4941 5058 5130 5339 5490 5620 5795 5832 6156 6588 6744 6840 6954 7290 7320 7587 7695 8235 8430 8748 9234 9272 9720 9882 10116 10260 10431 10678 10935 10980 11240 11590 12312 12645 13176 13851 13908 14580 14823 15174 15390 16017 16470 16860 17141 17385 17496 18468 19764 20232 20520 20862 21356 21870 21960 22761 23085 23180 24705 25290 26695 27702 27816 29160 29646 30348 30780 31293 32034 32940 33720 34282 34770 36936 37935 39528 41553 41724 42712 43740 44469 45522 46170 46360 48051 49410 50580 51423 52155 53390 55404 59292 60696 61560 62586 64068 65880 68283 68564 69255 69540 74115 75870 80085 83106 83448 85705 87480 88938 91044 92340 93879 96102 98820 101160 102846 104310 106780 110808 113805 118584 125172 128136 133407 136566 137128 138510 139080 144153 148230 151740 154269 156465 160170 166212 171410 177876 182088 184680 187758 192204 197640 204849 205692 207765 208620 213560 222345 227610 240255 250344 257115 266814 273132 277020 281637 288306 296460 303480 308538 312930 320340 325679 332424 341415 342820 355752 375516 384408 409698 411384 415530 417240 432459 444690 455220 462807 469395 480510 514230 533628 546264 554040 563274 576612 592920 614547 617076 625860 640680 651358 667035 682830 685640 720765 751032 771345 819396 831060 844911 864918 889380 910440 925614 938790 961020 977037 1024245 1028460 1067256 1126548 1153224 1229094 1234152 1251720 1297377 1302716 1334070 1365660 1388421 1408185 1441530 1542690 1628395 1638792 1662120 1689822 1729836 1778760 1851228 1877580 1922040 1954074 2048490 2056920 2162295 2253096 2314035 2458188 2534733 2594754 2605432 2668140 2731320 2776842 2816370 2883060 2931111 3072735 3085380 3256790 3379644 3459672 3702456 3755160 3892131 3908148 4096980 4165263 4224555 4324590 4628070 4885185 4916376 5069466 5189508 5336280 5553684 5632740 5766120 5862222 6145470 6170760 6486885 6513580 6759288 6942105 7784262 7816296 8193960 8330526 8449110 8649180 8793333 9256140 9770370 10138932 10379016 11107368 11265480 11676393 11724444 12290940 12495789 12673665 12973770 13027160 13884210 14655555 15568524 16661052 16898220 17298360 17586666 18512280 19460655 19540740 20277864 20826315 23352786 23448888 24581880 24991578 25347330 25947540 26379999 27768420 29311110 31137048 33322104 33796440 35173332 37487367 38921310 39081480 41652630 43966665 46705572 49983156 50694660 51895080 52759998 55536840 58381965 58622220 62478945 70346664 74974734 77842620 79139997 83305260 87933330 93411144 99966312 101389320 105519996 116763930 117244440 124957890 131899995 149949468 155685240 158279994 166610520 175866660 187436835 211039992 233527860 237419991 249915780 263799990 299898936 316559988 351733320 374873670 395699985 467055720 474839982 499831560 527599980 633119976 712259973 749747340 791399970 949679964 1055199960 1187099955 1424519946 1499494680 1582799940 1899359928 2374199910 2849039892 3165599880 3561299865 4748399820 5698079784 7122599730 9496799640 14245199460 28490398920
• Sum of all divisors σ(n): 103225536000
• Sum of proper divisors (its aliquot sum) s(n): 74735137080
• 28490398920 is an abundant number, because the sum of its proper divisors (74735137080) is greater than itself. Its abundance is 46244738160

Bases of 28490398920

• Binary: 11010100010001010001111110011001000₂
• Hexadecimal: 0x6A228FCC8
• Base-36: D36G4I0

Squares and roots of 28490398920

• 28490398920 squared (28490398920²) is 811702830620737166400
• 28490398920 cubed (28490398920³) is 23125737448877993095206420288000
• The square root of 28490398920 is 168790.9918212461
• The cube root of 28490398920 is 3054.2143271911

Scales and comparisons

• 28,490,398,920 seconds is equal to 905 years, 47 weeks, 23 hours, 42 minutes.
• To count from 1 to 28,490,398,920 would take you about one thousand, eight hundred eleven 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 28490398920 cubic inches would be around 254.5 feet tall.

Recreational maths with 28490398920

• 28490398920 backwards is 02989309482
• 28490398920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28490398920's digits is 54
• More coming soon!