728128249212

Names of 728128249212

• Cardinal: 728128249212 can be written as Seven hundred twenty-eight billion, one hundred twenty-eight million, two hundred forty-nine thousand, two hundred twelve.

Scientific notation

• Scientific notation: 7.28128249212 × 10¹¹

Factors of 728128249212

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 531

Divisors of 728128249212

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 42 49 52 78 84 91 97 98 147 156 182 194 196 273 291 294 343 364 388 409 546 582 588 637 679 686 818 1029 1092 1164 1227 1261 1274 1358 1372 1636 1911 2037 2058 2401 2454 2522 2548 2716 2863 3783 3822 4074 4116 4459 4753 4802 4908 5044 5317 5726 7203 7566 7644 8148 8589 8827 8918 9506 9604 10634 11452 13377 14259 14406 15132 15951 16807 17178 17654 17836 19012 20041 21268 26481 26754 28518 28812 31213 31902 33271 33614 34356 35308 37219 39673 40082 50421 52962 53508 57036 60123 61789 62426 63804 66542 67228 74438 79346 80164 93639 99813 100842 105924 111657 117649 119019 120246 123578 124852 133084 140287 148876 158692 185367 187278 199626 201684 218491 223314 232897 235298 238038 240492 247156 260533 277711 280574 352947 370734 374556 399252 420861 432523 436982 446628 465794 470596 476076 515749 521066 555422 561148 655473 698691 705894 741468 781599 833133 841722 865046 873964 931588 982009 1031498 1042132 1110844 1297569 1310946 1397382 1411788 1529437 1547247 1563198 1630279 1666266 1683444 1730092 1823731 1943977 1964018 2062996 2595138 2621892 2794764 2946027 3027661 3058874 3094494 3126396 3260558 3332532 3610243 3647462 3887954 3928036 4588311 4890837 5190276 5471193 5831931 5892054 6055322 6117748 6188988 6521116 6874063 7220486 7294924 7775908 9082983 9176622 9781674 10830729 10942386 11411953 11663862 11784108 12110644 12766117 13607839 13748126 14440972 18165966 18353244 19563348 20622189 21193627 21661458 21884772 22823906 23327724 25271701 25532234 27215678 27496252 34235859 36331932 38298351 40823517 41244378 42387254 43322916 45647812 48118441 50543402 51064468 54431356 63580881 68471718 75815103 76596702 81647034 82488756 84774508 89362819 95254873 96236882 101086804 127161762 136943436 144355323 148355389 151630206 153193404 163294068 176901907 178725638 190509746 192473764 254323524 268088457 285764619 288710646 296710778 303260412 353803814 357451276 381019492 445066167 530705721 536176914 571529238 577421292 593421556 625539733 666784111 707607628 890132334 1061411442 1072353828 1143058476 1238313349 1251079466 1333568222 1780264668 1876619199 2000352333 2122822884 2476626698 2502158932 2667136444 3714940047 3753238398 4000704666 4667488777 4953253396 7429880094 7506476796 8001409332 8668193443 9334977554 14002466331 14859760188 17336386886 18669955108 26004580329 28004932662 34672773772 52009160658 56009865324 60677354101 104018321316 121354708202 182032062303 242709416404 364064124606 728128249212
• Sum of all divisors σ(n): 2161874613920
• Sum of proper divisors (its aliquot sum) s(n): 1433746364708
• 728128249212 is an abundant number, because the sum of its proper divisors (1433746364708) is greater than itself. Its abundance is 705618115496

Bases of 728128249212

• Binary: 1010100110000111110100110101110101111100₂
• Hexadecimal: 0xA987D35D7C
• Base-36: 9AHWRCSC

Squares and roots of 728128249212

• 728128249212 squared (728128249212²) is 530170747300532378620944
• 728128249212 cubed (728128249212³) is 386032298015354316040785853714696128
• The square root of 728128249212 is 853304.3121958309
• The cube root of 728128249212 is 8996.4111172679

Scales and comparisons

• 728,128,249,212 seconds is equal to 23,152 years, 11 weeks, 5 days, 7 hours, 12 seconds.
• To count from 1 to 728,128,249,212 would take you about forty-six thousand, three hundred four 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 728128249212 cubic inches would be around 749.7 feet tall.

Recreational maths with 728128249212

• 728128249212 backwards is 212942821827
• The number of decimal digits it has is: 12
• The sum of 728128249212's digits is 48
• More coming soon!