31389830115

Names of 31389830115

• Cardinal: 31389830115 can be written as Thirty-one billion, three hundred eighty-nine million, eight hundred thirty thousand, one hundred fifteen.

Scientific notation

• Scientific notation: 3.1389830115 × 10¹⁰

Factors of 31389830115

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 723

Divisors of 31389830115

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 7 15 17 21 29 31 35 51 85 87 93 105 119 145 155 203 217 255 357 435 465 493 527 595 609 631 651 899 961 1015 1085 1479 1581 1785 1893 2465 2635 2697 2883 3045 3155 3255 3451 3689 4417 4495 4805 6293 6727 7395 7905 9465 10353 10727 11067 13251 13485 14415 15283 16337 17255 18299 18445 18879 19561 20181 22085 27869 31465 32181 33635 45849 49011 51765 53635 54897 55335 58683 66255 75089 76415 81685 83607 91495 94395 97805 100905 106981 114359 128093 136927 139345 160905 195083 225267 229245 245055 274485 293415 311083 320943 332537 343077 375445 384279 410781 418035 473773 534905 567269 571795 585249 606391 640465 684635 933249 975415 997611 1126335 1421319 1555415 1604715 1662685 1701807 1715385 1819173 1921395 2053905 2177581 2327759 2368865 2836345 2926245 3031955 3316411 3970883 4244737 4666245 4988055 6532743 6983277 7106595 8509035 9095865 9643573 9949233 10308647 10887905 11638795 11912649 12734211 16582055 17585339 19854415 21223685 28930719 30925941 32663715 34916385 48217865 49746165 51543235 52756017 59563245 63671055 67505011 72160529 87926695 123097373 144653595 154629705 202515033 216481587 263780085 298950763 337525055 360802645 369292119 615486865 896852289 1012575165 1082407935 1494753815 1846460595 2092655341 4484261445 6277966023 10463276705 31389830115
• Sum of all divisors σ(n): 65067079680
• Sum of proper divisors (its aliquot sum) s(n): 33677249565
• 31389830115 is an abundant number, because the sum of its proper divisors (33677249565) is greater than itself. Its abundance is 2287419450

Bases of 31389830115

• Binary: 11101001110111110101100101111100011₂
• Hexadecimal: 0x74EFACBE3
• Base-36: EF4OZXF

Squares and roots of 31389830115

• 31389830115 squared (31389830115²) is 985321434648560913225
• 31389830115 cubed (31389830115³) is 30929072442286401795362006770875
• The square root of 31389830115 is 177171.7531521323
• The cube root of 31389830115 is 3154.4936324159

Scales and comparisons

• 31,389,830,115 seconds is equal to 998 years, 5 weeks, 1 day, 5 hours, 15 minutes, 15 seconds.
• To count from 1 to 31,389,830,115 would take you about one thousand, nine hundred ninety-six 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 31389830115 cubic inches would be around 262.9 feet tall.

Recreational maths with 31389830115

• 31389830115 backwards is 51103898313
• The number of decimal digits it has is: 11
• The sum of 31389830115's digits is 42
• More coming soon!