18491398848

Names of 18491398848

• Cardinal: 18491398848 can be written as Eighteen billion, four hundred ninety-one million, three hundred ninety-eight thousand, eight hundred forty-eight.

Scientific notation

• Scientific notation: 1.8491398848 × 10¹⁰

Factors of 18491398848

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1257

Divisors of 18491398848

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 32 34 36 39 41 48 51 52 54 64 68 72 78 82 96 102 104 108 117 123 136 144 153 156 164 192 204 208 216 221 234 246 272 288 306 312 328 351 369 408 416 432 442 459 468 492 533 544 576 612 624 656 663 697 702 738 816 832 864 884 918 936 984 1066 1088 1107 1181 1224 1248 1312 1326 1394 1404 1476 1599 1632 1728 1768 1836 1872 1968 1989 2091 2132 2214 2362 2448 2496 2624 2652 2788 2808 2952 3198 3264 3536 3543 3672 3744 3936 3978 4182 4264 4428 4724 4797 4896 5304 5576 5616 5904 5967 6273 6396 7072 7086 7344 7488 7872 7956 8364 8528 8856 9061 9448 9594 9792 10608 10629 11152 11232 11808 11934 12546 12792 14144 14172 14391 14688 15353 15912 16728 17056 17712 18122 18819 18896 19188 20077 21216 21258 22304 22464 23616 23868 25092 25584 27183 28344 28782 29376 30706 31824 31887 33456 34112 35424 36244 37638 37792 38376 40154 42432 42516 44608 46059 47736 48421 50184 51168 54366 56688 57564 60231 61412 63648 63774 66912 70848 72488 75276 75584 76752 80308 81549 85032 92118 95472 96842 100368 102336 108732 113376 115128 120462 122824 127296 127548 133824 138177 144976 145263 150552 153504 160616 163098 170064 180693 184236 190944 193684 200736 217464 226752 230256 240924 244647 245648 255096 261001 276354 289952 290526 301104 307008 321232 326196 340128 361386 368472 381888 387368 401472 414531 434928 435789 460512 481848 489294 491296 510192 522002 542079 552708 579904 581052 602208 629473 642464 652392 680256 722772 736944 774736 783003 823157 829062 869856 871578 921024 963696 978588 982592 1020384 1044004 1084158 1105416 1162104 1204416 1258946 1284928 1304784 1307367 1445544 1473888 1549472 1566006 1646314 1658124 1739712 1743156 1888419 1927392 1957176 2040768 2088008 2168316 2210832 2324208 2349009 2469471 2517892 2609568 2614734 2891088 2947776 3098944 3132012 3292628 3316248 3486312 3776838 3854784 3914352 4176016 4336632 4421664 4648416 4698018 4938942 5035784 5219136 5229468 5665257 5782176 6264024 6585256 6632496 6972624 7047027 7408413 7553676 7828704 8352032 8673264 8843328 9296832 9396036 9877884 10071568 10458936 10701041 11330514 11564352 12528048 13170512 13264992 13945248 14094054 14816826 15107352 15657408 16704064 16995771 17346528 18792072 19755768 20143136 20917872 21402082 22225239 22661028 25056096 26341024 26529984 27890496 28188108 29633652 30214704 32103123 33991542 34693056 37584144 39511536 40286272 41835744 42804164 44450478 45322056 50112192 52682048 56376216 59267304 60429408 64206246 67983084 75168288 79023072 83671488 85608328 88900956 90644112 96309369 112752432 118534608 120858816 128412492 135966168 150336576 158046144 171216656 177801912 181288224 192618738 225504864 237069216 256824984 271932336 288928107 342433312 355603824 362576448 385237476 451009728 474138432 513649968 543864672 577856214 684866624 711207648 770474952 1027299936 1087729344 1155712428 1422415296 1540949904 2054599872 2311424856 3081899808 4622849712 6163799616 9245699424 18491398848
• Sum of all divisors σ(n): 63552263040
• Sum of proper divisors (its aliquot sum) s(n): 45060864192
• 18491398848 is an abundant number, because the sum of its proper divisors (45060864192) is greater than itself. Its abundance is 26569465344

Bases of 18491398848

• Binary: 10001001110001011000101101011000000₂
• Hexadecimal: 0x44E2C5AC0
• Base-36: 8HTAUO0

Squares and roots of 18491398848

• 18491398848 squared (18491398848²) is 341931831355815727104
• 18491398848 cubed (18491398848³) is 6322797872427461214271187976192
• The square root of 18491398848 is 135983.0829478433
• The cube root of 18491398848 is 2644.3762951803

Scales and comparisons

• 18,491,398,848 seconds is equal to 587 years, 50 weeks, 2 days, 19 hours, 40 minutes, 48 seconds.
• To count from 1 to 18,491,398,848 would take you about one thousand, one hundred seventy-five 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 18491398848 cubic inches would be around 220.4 feet tall.

Recreational maths with 18491398848

• 18491398848 backwards is 84889319481
• The number of decimal digits it has is: 11
• The sum of 18491398848's digits is 63
• More coming soon!