30728038320

Names of 30728038320

• Cardinal: 30728038320 can be written as Thirty billion, seven hundred twenty-eight million, thirty-eight thousand, three hundred twenty.

Scientific notation

• Scientific notation: 3.072803832 × 10¹⁰

Factors of 30728038320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6096850

Divisors of 30728038320

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 35 36 40 42 45 48 56 60 63 70 72 80 84 90 105 112 120 126 140 144 168 180 210 240 252 280 315 336 360 420 504 560 630 720 840 1008 1260 1680 2520 5040 6096833 12193666 18290499 24387332 30484165 36580998 42677831 48774664 54871497 60968330 73161996 85355662 91452495 97549328 109742994 121936660 128033493 146323992 170711324 182904990 213389155 219485988 243873320 256066986 274357485 292647984 341422648 365809980 384100479 426778310 438971976 487746640 512133972 548714970 640167465 682845296 731619960 768200958 853556620 877943952 1024267944 1097429940 1280334930 1463239920 1536401916 1707113240 1920502395 2048535888 2194859880 2560669860 3072803832 3414226480 3841004790 4389719760 5121339720 6145607664 7682009580 10242679440 15364019160 30728038320
• Sum of all divisors σ(n): 117937156896
• Sum of proper divisors (its aliquot sum) s(n): 87209118576
• 30728038320 is an abundant number, because the sum of its proper divisors (87209118576) is greater than itself. Its abundance is 56481080256

Bases of 30728038320

• Binary: 11100100111100010001010011110110000₂
• Hexadecimal: 0x72788A7B0
• Base-36: E46OI40

Squares and roots of 30728038320

• 30728038320 squared (30728038320²) is 944212338995388422400
• 30728038320 cubed (30728038320³) is 29013792934867125746791546368000
• The square root of 30728038320 is 175294.1479913121
• The cube root of 30728038320 is 3132.1672571583

Scales and comparisons

• 30,728,038,320 seconds is equal to 977 years, 2 weeks, 6 days, 14 hours, 12 minutes.
• To count from 1 to 30,728,038,320 would take you about one thousand, nine hundred fifty-four 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 30728038320 cubic inches would be around 261 feet tall.

Recreational maths with 30728038320

• 30728038320 backwards is 02383082703
• 30728038320 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 30728038320's digits is 36
• More coming soon!