728812136988

Names of 728812136988

• Cardinal: 728812136988 can be written as Seven hundred twenty-eight billion, eight hundred twelve million, one hundred thirty-six thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 7.28812136988 × 10¹¹

Factors of 728812136988

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 235

Divisors of 728812136988

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 36 37 39 52 53 74 78 106 111 117 127 148 156 159 169 212 222 234 254 318 333 338 381 444 468 477 481 507 508 636 666 676 689 762 954 962 1014 1143 1332 1369 1378 1443 1521 1524 1651 1908 1924 1961 2028 2067 2197 2286 2738 2756 2886 3042 3302 3922 4107 4134 4329 4394 4572 4699 4953 5476 5772 5883 6084 6201 6253 6591 6604 6731 7844 8214 8268 8658 8788 8957 9398 9906 11766 12321 12402 12506 13182 13462 14097 14859 16428 17316 17649 17797 17914 18759 18796 19773 19812 20193 21463 23532 24642 24804 25012 25493 26364 26871 26924 28194 29718 35298 35594 35828 37518 39546 40386 42291 42926 49284 50986 53391 53742 56277 56388 59436 60579 61087 64389 70596 71188 72557 75036 76479 79092 80613 80772 81289 84582 85852 87503 101972 106782 107484 112554 116441 121158 122174 128778 145114 152958 160173 161226 162578 169164 173863 175006 183261 193167 213564 217671 225108 229437 231361 232882 242316 243867 244348 249047 257556 262509 279019 290228 305916 320346 322452 325156 331409 347726 349323 350012 366522 386334 435342 458874 462722 465764 487734 498094 521589 525018 549783 558038 640692 653013 662818 694083 695452 698646 731601 733044 747141 772668 787527 794131 837057 870684 917748 925444 943241 975468 994227 996188 1043178 1047969 1050036 1099566 1116076 1137539 1306026 1325636 1388166 1397292 1463202 1494282 1564767 1575054 1588262 1674114 1886482 1988454 2082249 2086356 2095938 2199132 2241423 2260219 2275078 2382393 2511171 2612052 2776332 2829723 2926404 2982681 2988564 3007693 3129534 3150108 3176524 3237611 3348228 3412617 3772964 3976908 4164498 4191876 4308317 4482846 4520438 4550156 4764786 5022342 5659446 5965362 6015386 6259068 6475222 6780657 6825234 7147179 8328996 8489169 8616634 8965692 9023079 9040876 9214739 9529572 9712833 10044684 10237851 10323703 11318892 11930724 12030772 12262133 12924951 12950444 13561314 13650468 14294358 14788007 16978338 17233268 18046158 18429478 19425666 20341971 20475702 20647406 24524266 25849902 27069237 27122628 27644217 28588716 29138499 29382847 29576014 30971109 33956676 36092316 36786399 36858956 38774853 38851332 40683942 40951404 41294812 42088943 44364021 49048532 51699804 54138474 55288434 58276998 58765694 59152028 61942218 73572798 77549706 81367884 82932651 84177886 88148541 88728042 92913327 108276948 110359197 110576868 116553996 117531388 119791607 123884436 126266829 133092063 147145596 155099412 159407729 165865302 168355772 176297082 177456084 185826654 220718394 239583214 252533658 264445623 266184126 318815458 331730604 352594164 359374821 371653308 378800487 381977011 441436788 478223187 479166428 505067316 528891246 532368252 547156259 637630916 718749642 757600974 763954022 956446374 1057782492 1078124463 1094312518 1145931033 1434669561 1437499284 1515201948 1527908044 1557290891 1641468777 1912892748 2156248926 2188625036 2291862066 2869339122 3114581782 3282937554 3437793099 4312497852 4583724132 4671872673 4924406331 5738678244 6229163564 6565875108 6875586198 9343745346 9848812662 13751172396 14015618019 18687490692 19697625324 20244781583 28031236038 40489563166 56062472076 60734344749 80979126332 121468689498 182203034247 242937378996 364406068494 728812136988
• Sum of all divisors σ(n): 2106280350720
• Sum of proper divisors (its aliquot sum) s(n): 1377468213732
• 728812136988 is an abundant number, because the sum of its proper divisors (1377468213732) is greater than itself. Its abundance is 648656076744

Bases of 728812136988

• Binary: 1010100110110000100101101010101000011100₂
• Hexadecimal: 0xA9B096AA1C
• Base-36: 9AT7XFZ0

Squares and roots of 728812136988

• 728812136988 squared (728812136988²) is 531167131021015277712144
• 728812136988 cubed (728812136988³) is 387121051857211130886783956159182272
• The square root of 728812136988 is 853704.9472669115
• The cube root of 728812136988 is 8999.2268347663

Scales and comparisons

• 728,812,136,988 seconds is equal to 23,173 years, 50 weeks, 3 days, 15 hours, 49 minutes, 48 seconds.
• To count from 1 to 728,812,136,988 would take you about forty-six thousand, three hundred forty-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 728812136988 cubic inches would be around 749.9 feet tall.

Recreational maths with 728812136988

• 728812136988 backwards is 889631218827
• The number of decimal digits it has is: 12
• The sum of 728812136988's digits is 63
• More coming soon!