18311331168

Names of 18311331168

• Cardinal: 18311331168 can be written as Eighteen billion, three hundred eleven million, three hundred thirty-one thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8311331168 × 10¹⁰

Factors of 18311331168

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19838

Divisors of 18311331168

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 32 36 38 39 48 52 57 72 76 78 96 104 114 117 144 152 156 169 171 208 228 234 247 288 304 312 338 342 416 456 468 494 507 608 624 676 684 741 912 936 988 1014 1248 1352 1368 1482 1521 1824 1872 1976 2028 2223 2704 2736 2964 3042 3211 3744 3952 4056 4446 5408 5472 5928 6084 6422 7904 8112 8892 9633 11856 12168 12844 16224 17784 19266 19801 23712 24336 25688 28899 35568 38532 39602 48672 51376 57798 59403 71136 77064 79204 102752 115596 118806 154128 158408 178209 231192 237612 257413 308256 316816 356418 376219 462384 475224 514826 633632 712836 752438 772239 924768 950448 1029652 1128657 1425672 1504876 1544478 1900896 2059304 2257314 2316717 2851344 3009752 3088956 3346369 3385971 4118608 4514628 4633434 4890847 5702688 6019504 6177912 6692738 6771942 8237216 9029256 9266868 9781694 10039107 12039008 12355824 13385476 13543884 14672541 18058512 18533736 19563388 20078214 24711648 26770952 27087768 29345082 30117321 36117024 37067472 39126776 40156428 44017623 53541904 54175536 58690164 60234642 63581011 74134944 78253552 80312856 88035246 107083808 108351072 117380328 120469284 127162022 156507104 160625712 176070492 190743033 234760656 240938568 254324044 321251424 352140984 381486066 469521312 481877136 508648088 572229099 704281968 762972132 963754272 1017296176 1144458198 1408563936 1525944264 2034592352 2288916396 3051888528 4577832792 6103777056 9155665584 18311331168
• Sum of all divisors σ(n): 59357287080
• Sum of proper divisors (its aliquot sum) s(n): 41045955912
• 18311331168 is an abundant number, because the sum of its proper divisors (41045955912) is greater than itself. Its abundance is 22734624744

Bases of 18311331168

• Binary: 10001000011011100001011110101100000₂
• Hexadecimal: 0x44370BD60
• Base-36: 8EU3DK0

Squares and roots of 18311331168

• 18311331168 squared (18311331168²) is 335304849144168244224
• 18311331168 cubed (18311331168³) is 6139878134915146095894767173632
• The square root of 18311331168 is 135319.3673056447
• The cube root of 18311331168 is 2635.7647104359

Scales and comparisons

• 18,311,331,168 seconds is equal to 582 years, 12 weeks, 4 days, 16 hours, 52 minutes, 48 seconds.
• To count from 1 to 18,311,331,168 would take you about one thousand, one hundred sixty-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 18311331168 cubic inches would be around 219.6 feet tall.

Recreational maths with 18311331168

• 18311331168 backwards is 86113311381
• 18311331168 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18311331168's digits is 36
• More coming soon!