12999007840

Names of 12999007840

• Cardinal: 12999007840 can be written as Twelve billion, nine hundred ninety-nine million, seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.299900784 × 10¹⁰

Factors of 12999007840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 52561

Divisors of 12999007840

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 17 20 26 28 32 34 35 40 52 56 65 68 70 80 85 91 104 112 119 130 136 140 160 170 182 208 221 224 238 260 272 280 340 364 416 442 455 476 520 544 560 595 680 728 884 910 952 1040 1105 1120 1190 1360 1456 1547 1768 1820 1904 2080 2210 2380 2720 2912 3094 3536 3640 3808 4420 4760 6188 7072 7280 7735 8840 9520 12376 14560 15470 17680 19040 24752 30940 35360 49504 52517 61880 105034 123760 210068 247520 262585 367619 420136 525170 682721 735238 840272 892789 1050340 1365442 1470476 1680544 1785578 1838095 2100680 2730884 2940952 3413605 3571156 3676190 4201360 4463945 4779047 5461768 5881904 6249523 6827210 7142312 7352380 8402720 8927890 9558094 10923536 11606257 11763808 12499046 13654420 14284624 14704760 17855780 19116188 21847072 23212514 23895235 24998092 27308840 28569248 29409520 31247615 35711560 38232376 46425028 47790470 49996184 54617680 58031285 58819040 62495230 71423120 76464752 81243799 92850056 95580940 99992368 109235360 116062570 124990460 142846240 152929504 162487598 185700112 191161880 199984736 232125140 249980920 324975196 371400224 382323760 406218995 464250280 499961840 649950392 764647520 812437990 928500560 999923680 1299900784 1624875980 1857001120 2599801568 3249751960 6499503920 12999007840
• Sum of all divisors σ(n): 40021236864
• Sum of proper divisors (its aliquot sum) s(n): 27022229024
• 12999007840 is an abundant number, because the sum of its proper divisors (27022229024) is greater than itself. Its abundance is 14023221184

Bases of 12999007840

• Binary: 1100000110110011010001111001100000₂
• Hexadecimal: 0x306CD1E60
• Base-36: 5YZ9UN4

Squares and roots of 12999007840

• 12999007840 squared (12999007840²) is 168974204824381465600
• 12999007840 cubed (12999007840³) is 2196497013269900494485090304000
• The square root of 12999007840 is 114013.1915174731
• The cube root of 12999007840 is 2351.2748682445

Scales and comparisons

• 12,999,007,840 seconds is equal to 413 years, 17 weeks, 11 hours, 30 minutes, 40 seconds.
• To count from 1 to 12,999,007,840 would take you about eight hundred twenty-six 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 12999007840 cubic inches would be around 195.9 feet tall.

Recreational maths with 12999007840

• 12999007840 backwards is 04870099921
• The number of decimal digits it has is: 11
• The sum of 12999007840's digits is 49
• More coming soon!