7997940864

Names of 7997940864

• Cardinal: 7997940864 can be written as Seven billion, nine hundred ninety-seven million, nine hundred forty thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 7.997940864 × 10⁹

Factors of 7997940864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 373

Divisors of 7997940864

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 96 108 114 128 144 152 171 192 216 228 288 304 342 349 384 432 456 513 576 608 684 698 864 912 1026 1047 1152 1216 1368 1396 1728 1824 2052 2094 2432 2736 2792 3141 3456 3648 4104 4188 5472 5584 6282 6631 7296 8208 8376 9423 10944 11168 12564 13262 16416 16752 18846 19893 21888 22336 25128 26524 32832 33504 37692 39786 44672 50256 53048 59679 65664 67008 75384 79572 100512 106096 119358 121801 134016 150768 159144 179037 201024 212192 238716 243602 301536 318288 358074 365403 402048 424384 477432 487204 603072 636576 716148 730806 848768 954864 974408 1096209 1206144 1273152 1432296 1461612 1909728 1948816 2192418 2314219 2546304 2864592 2923224 3288627 3819456 3897632 4384836 4628438 5729184 5846448 6577254 6942657 7638912 7795264 8769672 9256876 11458368 11692896 13154508 13885314 15590528 17539344 18513752 20827971 22916736 23385792 26309016 27770628 35078688 37027504 41655942 46771584 52618032 55541256 62483913 70157376 74055008 83311884 105236064 111082512 124967826 140314752 148110016 166623768 210472128 222165024 249935652 296220032 333247536 420944256 444330048 499871304 666495072 888660096 999742608 1332990144 1999485216 2665980288 3998970432 7997940864
• Sum of all divisors σ(n): 24918804000
• Sum of proper divisors (its aliquot sum) s(n): 16920863136
• 7997940864 is an abundant number, because the sum of its proper divisors (16920863136) is greater than itself. Its abundance is 8922922272

Bases of 7997940864

• Binary: 111011100101101101110010010000000₂
• Hexadecimal: 0x1DCB6E480
• Base-36: 3O9RMO0

Squares and roots of 7997940864

• 7997940864 squared (7997940864²) is 63967058064041066496
• 7997940864 cubed (7997940864³) is 511604747640254774702499692544
• The square root of 7997940864 is 89431.2074390143
• The cube root of 7997940864 is 1999.8283906089

Scales and comparisons

• 7,997,940,864 seconds is equal to 254 years, 16 weeks, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 7,997,940,864 would take you about five hundred eight 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 7997940864 cubic inches would be around 166.7 feet tall.

Recreational maths with 7997940864

• 7997940864 backwards is 4680497997
• The number of decimal digits it has is: 10
• The sum of 7997940864's digits is 63
• More coming soon!