18209955072

Names of 18209955072

• Cardinal: 18209955072 can be written as Eighteen billion, two hundred nine million, nine hundred fifty-five thousand and seventy-two.

Scientific notation

• Scientific notation: 1.8209955072 × 10¹⁰

Factors of 18209955072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 240

Divisors of 18209955072

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 107 109 114 128 152 192 214 218 228 256 304 321 327 384 428 436 456 608 642 654 768 856 872 912 1216 1284 1308 1712 1744 1824 2033 2071 2432 2568 2616 3424 3488 3648 4066 4142 4864 5136 5232 6099 6213 6848 6976 7296 8132 8284 10272 10464 11449 11663 12198 12426 13696 13952 14592 16264 16568 20544 20928 22898 23326 24396 24852 27392 27904 32528 33136 34347 34989 41088 41856 45796 46652 48792 49704 65056 66272 68694 69978 82176 83712 91592 93304 97584 99408 130112 132544 137388 139956 183184 186608 195168 198816 217531 221597 260224 265088 274776 279912 366368 373216 390336 397632 435062 443194 520448 530176 549552 559824 652593 664791 732736 746432 780672 795264 870124 886388 1099104 1119648 1247941 1305186 1329582 1465472 1492864 1561344 1590528 1740248 1772776 2198208 2239296 2495882 2610372 2659164 2930944 2985728 3480496 3545552 3743823 4396416 4478592 4991764 5220744 5318328 6960992 7091104 7487646 8792832 8957184 9983528 10441488 10636656 13921984 14182208 14975292 19967056 20882976 21273312 23710879 27843968 28364416 29950584 39934112 41765952 42546624 47421758 55687936 56728832 59901168 71132637 79868224 83531904 85093248 94843516 119802336 142265274 159736448 167063808 170186496 189687032 239604672 284530548 319472896 379374064 479209344 569061096 758748128 958418688 1138122192 1517496256 2276244384 3034992512 4552488768 6069985024 9104977536 18209955072
• Sum of all divisors σ(n): 51969517600
• Sum of proper divisors (its aliquot sum) s(n): 33759562528
• 18209955072 is an abundant number, because the sum of its proper divisors (33759562528) is greater than itself. Its abundance is 15549607456

Bases of 18209955072

• Binary: 10000111101011001011101110100000000₂
• Hexadecimal: 0x43D65DD00
• Base-36: 8D5QJ9C

Squares and roots of 18209955072

• 18209955072 squared (18209955072²) is 331602463724258525184
• 18209955072 cubed (18209955072³) is 6038465966183257540113620533248
• The square root of 18209955072 is 134944.2665399313
• The cube root of 18209955072 is 2630.8916228759

Scales and comparisons

• 18,209,955,072 seconds is equal to 579 years, 1 week, 8 hours, 51 minutes, 12 seconds.
• To count from 1 to 18,209,955,072 would take you about one thousand, one hundred fifty-eight 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 18209955072 cubic inches would be around 219.2 feet tall.

Recreational maths with 18209955072

• 18209955072 backwards is 27055990281
• 18209955072 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18209955072's digits is 48
• More coming soon!