31495488138

Names of 31495488138

• Cardinal: 31495488138 can be written as Thirty-one billion, four hundred ninety-five million, four hundred eighty-eight thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.1495488138 × 10¹⁰

Factors of 31495488138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 965

Divisors of 31495488138

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 18 97 137 194 274 291 353 373 411 582 706 746 822 873 1059 1119 1233 1746 2118 2238 2466 3177 3357 6354 6714 13289 26578 34241 36181 39867 48361 51101 68482 72362 79734 96722 102202 102723 108543 119601 131669 145083 153303 205446 217086 239202 263338 290166 306606 308169 325629 395007 435249 459909 616338 651258 790014 870498 919818 1185021 2370042 4691017 4956797 9382034 9913594 12771893 14073051 14870391 18038653 25543786 28146102 29740782 36077306 38315679 42219153 44611173 54115959 76631358 84438306 89222346 108231918 114947037 162347877 229894074 324695754 1749749341 3499498682 5249248023 10498496046 15747744069 31495488138
• Sum of all divisors σ(n): 69830416656
• Sum of proper divisors (its aliquot sum) s(n): 38334928518
• 31495488138 is an abundant number, because the sum of its proper divisors (38334928518) is greater than itself. Its abundance is 6839440380

Bases of 31495488138

• Binary: 11101010101010001110000001010001010₂
• Hexadecimal: 0x75547028A
• Base-36: EGVLM6I

Squares and roots of 31495488138

• 31495488138 squared (31495488138²) is 991965773050898707044
• 31495488138 cubed (31495488138³) is 31242446238426580297943839044072
• The square root of 31495488138 is 177469.6823065845
• The cube root of 31495488138 is 3158.0290056873

Scales and comparisons

• 31,495,488,138 seconds is equal to 1,001 years, 23 weeks, 6 days, 2 hours, 42 minutes, 18 seconds.
• To count from 1 to 31,495,488,138 would take you about two thousand and two 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 31495488138 cubic inches would be around 263.2 feet tall.

Recreational maths with 31495488138

• 31495488138 backwards is 83188459413
• The number of decimal digits it has is: 11
• The sum of 31495488138's digits is 54
• More coming soon!