30991923840

Names of 30991923840

• Cardinal: 30991923840 can be written as Thirty billion, nine hundred ninety-one million, nine hundred twenty-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 3.099192384 × 10¹⁰

Factors of 30991923840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 304622

Divisors of 30991923840

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 53 60 64 80 96 106 120 128 159 160 192 212 240 265 318 320 384 424 480 530 636 640 795 848 960 1060 1272 1590 1696 1920 2120 2544 3180 3392 4240 5088 6360 6784 8480 10176 12720 16960 20352 25440 33920 50880 101760 304559 609118 913677 1218236 1522795 1827354 2436472 3045590 3654708 4568385 4872944 6091180 7309416 9136770 9745888 12182360 14618832 16141627 18273540 19491776 24364720 29237664 32283254 36547080 38983552 48424881 48729440 58475328 64566508 73094160 80708135 96849762 97458880 116950656 129133016 146188320 161416270 193699524 194917760 242124405 258266032 292376640 322832540 387399048 484248810 516532064 584753280 645665080 774798096 968497620 1033064128 1291330160 1549596192 1936995240 2066128256 2582660320 3099192384 3873990480 5165320640 6198384768 7747980960 10330641280 15495961920 30991923840
• Sum of all divisors σ(n): 100650988800
• Sum of proper divisors (its aliquot sum) s(n): 69659064960
• 30991923840 is an abundant number, because the sum of its proper divisors (69659064960) is greater than itself. Its abundance is 38667141120

Bases of 30991923840

• Binary: 11100110111010000110011101010000000₂
• Hexadecimal: 0x737433A80
• Base-36: E8JSHHC

Squares and roots of 30991923840

• 30991923840 squared (30991923840²) is 960499343304360345600
• 30991923840 cubed (30991923840³) is 29767722496058749770751279104000
• The square root of 30991923840 is 176045.2323694113
• The cube root of 30991923840 is 3141.1078298511

Scales and comparisons

• 30,991,923,840 seconds is equal to 985 years, 23 weeks, 1 day, 19 hours, 44 minutes.
• To count from 1 to 30,991,923,840 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 30991923840 cubic inches would be around 261.8 feet tall.

Recreational maths with 30991923840

• 30991923840 backwards is 04832919903
• 30991923840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30991923840's digits is 48
• More coming soon!