18881990316

Names of 18881990316

• Cardinal: 18881990316 can be written as Eighteen billion, eight hundred eighty-one million, nine hundred ninety thousand, three hundred sixteen.

Scientific notation

• Scientific notation: 1.8881990316 × 10¹⁰

Factors of 18881990316

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8743

Divisors of 18881990316

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 19 21 28 36 38 42 57 63 76 84 114 126 133 171 228 252 266 342 399 479 532 684 798 958 1197 1437 1596 1916 2394 2874 3353 4311 4788 5748 6706 8233 8622 9101 10059 13412 16466 17244 18202 20118 24699 27303 30177 32932 36404 40236 49398 54606 57631 60354 63707 74097 81909 98796 109212 115262 120708 127414 148194 156427 163818 172893 191121 230524 254828 296388 312854 327636 345786 382242 469281 518679 573363 625708 691572 764484 938562 1037358 1094989 1146726 1407843 1877124 2074716 2189978 2293452 2815686 3284967 3943607 4379956 5631372 6569934 7887214 9854901 11830821 13139868 15774428 19709802 23661642 27605249 35492463 39419604 47323284 55210498 70984926 74928533 82815747 110420996 141969852 149857066 165631494 224785599 248447241 299714132 331262988 449571198 496894482 524499731 674356797 899142396 993788964 1048999462 1348713594 1573499193 2097998924 2697427188 3146998386 4720497579 6293996772 9440995158 18881990316
• Sum of all divisors σ(n): 57545779200
• Sum of proper divisors (its aliquot sum) s(n): 38663788884
• 18881990316 is an abundant number, because the sum of its proper divisors (38663788884) is greater than itself. Its abundance is 19781798568

Bases of 18881990316

• Binary: 10001100101011101000100111010101100₂
• Hexadecimal: 0x465744EAC
• Base-36: 8O9UKZ0

Squares and roots of 18881990316

• 18881990316 squared (18881990316²) is 356529558293517779856
• 18881990316 cubed (18881990316³) is 6731987667065960204814811874496
• The square root of 18881990316 is 137411.7546500299
• The cube root of 18881990316 is 2662.8656585409

Scales and comparisons

• 18,881,990,316 seconds is equal to 600 years, 20 weeks, 1 day, 13 hours, 18 minutes, 36 seconds.
• To count from 1 to 18,881,990,316 would take you about one thousand, two hundred 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 18881990316 cubic inches would be around 221.9 feet tall.

Recreational maths with 18881990316

• 18881990316 backwards is 61309918881
• The number of decimal digits it has is: 11
• The sum of 18881990316's digits is 54
• More coming soon!