8138868012

Names of 8138868012

• Cardinal: 8138868012 can be written as Eight billion, one hundred thirty-eight million, eight hundred sixty-eight thousand and twelve.

Scientific notation

• Scientific notation: 8.138868012 × 10⁹

Factors of 8138868012

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 249

Divisors of 8138868012

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 81 99 108 121 132 162 198 233 242 243 297 324 363 396 466 484 486 594 699 726 729 891 932 972 1089 1188 1331 1398 1452 1458 1782 2097 2178 2187 2563 2662 2673 2796 2916 3267 3564 3993 4194 4356 4374 5126 5324 5346 6291 6534 6561 7689 7986 8019 8388 8748 9801 10252 10692 11979 12582 13068 13122 15378 15972 16038 18873 19602 23067 23958 24057 25164 26244 28193 29403 30756 32076 35937 37746 39204 46134 47916 48114 56386 56619 58806 69201 71874 72171 75492 84579 88209 92268 96228 107811 112772 113238 117612 138402 143748 144342 169158 169857 176418 207603 215622 226476 253737 264627 276804 288684 310123 323433 338316 339714 352836 415206 431244 507474 509571 529254 620246 622809 646866 679428 761211 793881 830412 930369 970299 1014948 1019142 1058508 1240492 1245618 1293732 1522422 1528713 1587762 1860738 1868427 1940598 2038284 2283633 2491236 2791107 2910897 3044844 3057426 3175524 3721476 3736854 3881196 4567266 5582214 5605281 5821794 6114852 6850899 7473708 8373321 8732691 9134532 11164428 11210562 11643588 13701798 16746642 16815843 17465382 20552697 22421124 25119963 27403596 33493284 33631686 34930764 41105394 50239926 61658091 67263372 75359889 82210788 100479852 123316182 150719778 184974273 226079667 246632364 301439556 369948546 452159334 678239001 739897092 904318668 1356478002 2034717003 2712956004 4069434006 8138868012
• Sum of all divisors σ(n): 23599032912
• Sum of proper divisors (its aliquot sum) s(n): 15460164900
• 8138868012 is an abundant number, because the sum of its proper divisors (15460164900) is greater than itself. Its abundance is 7321296888

Bases of 8138868012

• Binary: 111100101000111010100010100101100₂
• Hexadecimal: 0x1E51D452C
• Base-36: 3QLO6R0

Squares and roots of 8138868012

• 8138868012 squared (8138868012²) is 66241172516756832144
• 8138868012 cubed (8138868012³) is 539128160074005715119254977728
• The square root of 8138868012 is 90215.6749794625
• The cube root of 8138868012 is 2011.5060132247

Scales and comparisons

• 8,138,868,012 seconds is equal to 258 years, 41 weeks, 20 hours, 40 minutes, 12 seconds.
• To count from 1 to 8,138,868,012 would take you about five hundred seventeen 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 8138868012 cubic inches would be around 167.6 feet tall.

Recreational maths with 8138868012

• 8138868012 backwards is 2108688318
• The number of decimal digits it has is: 10
• The sum of 8138868012's digits is 45
• More coming soon!