30728760912

Names of 30728760912

• Cardinal: 30728760912 can be written as Thirty billion, seven hundred twenty-eight million, seven hundred sixty thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 3.0728760912 × 10¹⁰

Factors of 30728760912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9798

Divisors of 30728760912

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 31 36 48 54 62 72 93 108 124 144 186 216 241 248 279 372 432 482 496 558 723 744 837 964 1116 1446 1488 1674 1928 2169 2232 2892 3348 3856 4338 4464 5784 6507 6696 7471 8676 9521 11568 13014 13392 14942 17352 19042 22413 26028 28563 29884 34704 38084 44826 52056 57126 59768 67239 76168 85689 89652 104112 114252 119536 134478 152336 171378 179304 201717 228504 257067 268956 295151 342756 358608 403434 457008 514134 537912 590302 685512 806868 885453 1028268 1075824 1180604 1371024 1613736 1770906 2056536 2294561 2361208 2656359 3227472 3541812 4113072 4589122 4722416 5312718 6883683 7083624 7969077 9178244 10625436 13767366 14167248 15938154 18356488 20651049 21250872 27534732 31876308 36712976 41302098 42501744 55069464 61953147 63752616 71131391 82604196 110138928 123906294 127505232 142262782 165208392 213394173 247812588 284525564 330416784 426788346 495625176 569051128 640182519 853576692 991250352 1138102256 1280365038 1707153384 1920547557 2560730076 3414306768 3841095114 5121460152 7682190228 10242920304 15364380456 30728760912
• Sum of all divisors σ(n): 91435576320
• Sum of proper divisors (its aliquot sum) s(n): 60706815408
• 30728760912 is an abundant number, because the sum of its proper divisors (60706815408) is greater than itself. Its abundance is 29978054496

Bases of 30728760912

• Binary: 11100100111100100111010111001010000₂
• Hexadecimal: 0x72793AE50
• Base-36: E473ZO0

Squares and roots of 30728760912

• 30728760912 squared (30728760912²) is 944256747186859071744
• 30728760912 cubed (30728760912³) is 29015839823847821003859630870528
• The square root of 30728760912 is 175296.2090634021
• The cube root of 30728760912 is 3132.1918086903

Scales and comparisons

• 30,728,760,912 seconds is equal to 977 years, 4 weeks, 22 hours, 55 minutes, 12 seconds.
• To count from 1 to 30,728,760,912 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 30728760912 cubic inches would be around 261 feet tall.

Recreational maths with 30728760912

• 30728760912 backwards is 21906782703
• The number of decimal digits it has is: 11
• The sum of 30728760912's digits is 45
• More coming soon!