30991247584

Names of 30991247584

• Cardinal: 30991247584 can be written as Thirty billion, nine hundred ninety-one million, two hundred forty-seven thousand, five hundred eighty-four.

Scientific notation

• Scientific notation: 3.0991247584 × 10¹⁰

Factors of 30991247584

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 344

Divisors of 30991247584

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 11 16 22 31 32 43 44 62 86 88 124 172 176 248 257 341 344 352 473 496 514 682 688 946 992 1028 1333 1364 1376 1892 2056 2666 2728 2827 3784 4112 5332 5456 5654 7568 7967 8224 10664 10912 11051 11308 14663 15136 15934 21328 22102 22616 29326 31868 42656 44204 45232 58652 63736 66049 87637 88408 90464 117304 121561 127472 132098 175274 176816 234608 243122 254944 264196 342581 350548 353632 469216 486244 528392 685162 701096 726539 972488 1056784 1370324 1402192 1453078 1944976 2047519 2113568 2740648 2804384 2840107 2906156 3768391 3889952 4095038 5481296 5680214 5812312 7536782 8190076 10962592 11360428 11624624 15073564 16380152 22522709 22720856 23249248 30147128 31241177 32760304 45045418 45441712 60294256 62482354 65520608 88043317 90090836 90883424 120588512 124964708 176086634 180181672 249929416 352173268 360363344 499858832 704346536 720726688 968476487 999717664 1408693072 1936952974 2817386144 3873905948 7747811896 15495623792 30991247584
• Sum of all divisors σ(n): 70580353536
• Sum of proper divisors (its aliquot sum) s(n): 39589105952
• 30991247584 is an abundant number, because the sum of its proper divisors (39589105952) is greater than itself. Its abundance is 8597858368

Bases of 30991247584

• Binary: 11100110111001110001110100011100000₂
• Hexadecimal: 0x73738E8E0
• Base-36: E8JDZOG

Squares and roots of 30991247584

• 30991247584 squared (30991247584²) is 960457426812785837056
• 30991247584 cubed (30991247584³) is 29765773908246605892971177672704
• The square root of 30991247584 is 176043.3116707363
• The cube root of 30991247584 is 3141.0849829477

Scales and comparisons

• 30,991,247,584 seconds is equal to 985 years, 22 weeks, 23 hours, 53 minutes, 4 seconds.
• To count from 1 to 30,991,247,584 would take you about one thousand, nine hundred seventy 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 30991247584 cubic inches would be around 261.8 feet tall.

Recreational maths with 30991247584

• 30991247584 backwards is 48574219903
• The number of decimal digits it has is: 11
• The sum of 30991247584's digits is 52
• More coming soon!