18457309728

Names of 18457309728

• Cardinal: 18457309728 can be written as Eighteen billion, four hundred fifty-seven million, three hundred nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8457309728 × 10¹⁰

Factors of 18457309728

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 200

Divisors of 18457309728

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 16 18 22 24 26 27 31 32 33 36 39 44 48 52 54 61 62 66 72 78 79 88 93 96 99 104 108 117 122 124 132 143 144 156 158 176 183 186 198 208 216 234 237 244 248 264 279 286 288 297 312 316 341 351 352 366 372 396 403 416 429 432 468 474 488 496 528 549 558 572 594 624 632 671 682 702 711 732 744 792 793 806 837 858 864 869 936 948 976 992 1023 1027 1056 1098 1116 1144 1188 1209 1248 1264 1287 1342 1364 1404 1422 1464 1488 1584 1586 1612 1647 1674 1716 1738 1872 1891 1896 1952 2013 2046 2054 2133 2196 2232 2288 2376 2379 2418 2449 2528 2574 2607 2684 2728 2808 2844 2928 2976 3069 3081 3168 3172 3224 3294 3348 3432 3476 3627 3744 3782 3792 3861 4026 4092 4108 4266 4392 4433 4464 4576 4752 4758 4819 4836 4898 5148 5214 5368 5456 5616 5673 5688 5856 6039 6138 6162 6344 6448 6588 6696 6864 6952 7137 7254 7347 7564 7584 7722 7821 8052 8184 8216 8532 8723 8784 8866 8928 9207 9243 9504 9516 9638 9672 9796 10296 10428 10736 10881 10912 11232 11297 11346 11376 12078 12276 12324 12688 12896 13176 13299 13392 13728 13904 14274 14457 14508 14694 15128 15444 15642 16104 16368 16432 17019 17064 17446 17568 17732 18117 18414 18486 19032 19276 19344 19592 20592 20801 20856 21411 21472 21762 22041 22594 22692 22752 23463 24156 24552 24583 24648 25376 26169 26352 26598 26784 26939 27729 27808 28548 28914 29016 29388 30256 30888 31284 31837 32208 32736 32864 33891 34038 34128 34892 35464 36234 36828 36972 38064 38552 38688 39184 39897 41184 41602 41712 42822 43371 43524 44082 45188 45384 46926 48312 49104 49166 49296 51057 52338 52704 53009 53196 53878 55458 57096 57828 58032 58776 60512 61776 62403 62568 62647 63674 64416 66123 67782 68076 68256 69784 70928 72468 73656 73749 73944 76128 77104 78368 78507 79794 80817 83204 83424 85644 86742 87048 88164 90376 90768 93852 95511 96624 98208 98332 98592 101673 102114 104676 106018 106392 107756 110916 114192 115656 116064 117552 119691 123552 124806 125136 125294 127348 130113 132246 135564 136152 139568 141856 144936 147312 147498 147888 149389 154208 157014 159027 159588 161634 166408 171288 173484 174096 176328 180752 181536 187209 187704 187941 191022 193248 196664 203346 204228 209352 212036 212784 215512 221247 221832 228384 231312 235104 235521 239382 242451 249612 250272 250588 254696 260226 264492 270413 271128 272304 279136 286533 289872 294624 294996 295776 298778 305019 314028 318054 319176 323268 332816 342576 346968 348192 350207 352656 361504 374418 375408 375882 382044 393328 406692 408456 418704 424072 425568 431024 442494 443664 448167 462624 471042 477081 478764 484902 499224 501176 509392 520452 528984 540826 542256 544608 561627 563823 573066 579744 589992 597556 610038 628056 636108 638352 646536 663741 665632 685152 689117 693936 700414 705312 727353 748836 750816 751764 764088 786656 811239 813384 816912 837408 848144 859599 862048 884988 887328 896334 942084 954162 957528 969804 998448 1002352 1018784 1040904 1050621 1057968 1081652 1084512 1123254 1127646 1146132 1179984 1195112 1220076 1256112 1272216 1276704 1293072 1327482 1344501 1378234 1387872 1400828 1431243 1454706 1497672 1503528 1528176 1622478 1626768 1633824 1643279 1691469 1696288 1719198 1769976 1792668 1884168 1908324 1915056 1939608 1942057 1996896 2004704 2067351 2081808 2101242 2115936 2163304 2246508 2255292 2292264 2359968 2390224 2433717 2440152 2512224 2544432 2586144 2654964 2689002 2756468 2801656 2862486 2909412 2995344 3007056 3056352 3151863 3244956 3253536 3286558 3382938 3438396 3539952 3585336 3768336 3816648 3830112 3879216 3884114 4033503 4134702 4163616 4202484 4326608 4493016 4510584 4584528 4780448 4867434 4880304 4929837 5088864 5309928 5378004 5512936 5603312 5724972 5818824 5826171 5990688 6014112 6202053 6303726 6489912 6573116 6765876 6876792 7079904 7170672 7301151 7536672 7633296 7758432 7768228 8067006 8269404 8404968 8653216 8986032 9021168 9169056 9455589 9734868 9760608 9859674 10619856 10756008 11025872 11206624 11449944 11637648 11652342 12404106 12607452 12979824 13146232 13531752 13753584 14341344 14602302 14789511 15266592 15536456 16134012 16538808 16809936 17478513 17972064 18042336 18606159 18911178 19469736 19719348 21239712 21362627 21512016 22051744 22899888 23275296 23304684 24808212 25214904 25959648 26292464 27063504 27507168 29204604 29579022 31072912 32268024 33077616 33619872 34957026 37212318 37822356 38939472 39438696 42725254 43024032 44368533 45799776 46609368 49616424 50429808 52435539 52584928 54127008 58409208 59158044 62145824 64087881 64536048 66155232 69914052 74424636 75644712 77878944 78877392 85450508 88737066 93218736 99232848 100859616 104871078 116818416 118316088 128175762 129072096 139828104 148849272 151289424 157754784 170901016 177474132 186437472 192263643 198465696 209742156 233636832 236632176 256351524 279656208 297698544 302578848 341802032 354948264 384527286 419484312 473264352 512703048 559312416 576790929 595397088 683604064 709896528 769054572 838968624 1025406096 1153581858 1419793056 1538109144 1677937248 2050812192 2307163716 3076218288 4614327432 6152436576 9228654864 18457309728
• Sum of all divisors σ(n): 67195699200
• Sum of proper divisors (its aliquot sum) s(n): 48738389472
• 18457309728 is an abundant number, because the sum of its proper divisors (48738389472) is greater than itself. Its abundance is 30281079744

Bases of 18457309728

• Binary: 10001001100001001000011001000100000₂
• Hexadecimal: 0x44C243220
• Base-36: 8H907C0

Squares and roots of 18457309728

• 18457309728 squared (18457309728²) is 340672282395323433984
• 18457309728 cubed (18457309728³) is 6287893831915166359779248996352
• The square root of 18457309728 is 135857.6818880699
• The cube root of 18457309728 is 2642.7503155823

Scales and comparisons

• 18,457,309,728 seconds is equal to 586 years, 46 weeks, 6 hours, 28 minutes, 48 seconds.
• To count from 1 to 18,457,309,728 would take you about one thousand, one hundred seventy-three 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 18457309728 cubic inches would be around 220.2 feet tall.

Recreational maths with 18457309728

• 18457309728 backwards is 82790375481
• 18457309728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18457309728's digits is 54
• More coming soon!