21134745840

Names of 21134745840

• Cardinal: 21134745840 can be written as Twenty-one billion, one hundred thirty-four million, seven hundred forty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.113474584 × 10¹⁰

Factors of 21134745840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9041

Divisors of 21134745840

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 827 1040 1560 1654 2481 3120 3308 4135 4962 6616 8191 8270 9924 10751 12405 13232 16382 16540 19848 21502 24573 24810 32253 32764 33080 39696 40955 43004 49146 49620 53755 64506 65528 66160 81910 86008 98292 99240 106483 107510 122865 129012 131056 161265 163820 172016 196584 198480 212966 215020 245730 258024 319449 322530 327640 393168 425932 430040 491460 516048 532415 638898 645060 655280 851864 860080 982920 1064830 1277796 1290120 1597245 1703728 1965840 2129660 2555592 2580240 3194490 4259320 5111184 6388980 6773957 8518640 12777960 13547914 20321871 25555920 27095828 33869785 40643742 54191656 67739570 81287484 88061441 101609355 108383312 135479140 162574968 176122882 203218710 264184323 270958280 325149936 352245764 406437420 440307205 528368646 541916560 704491528 812874840 880614410 1056737292 1320921615 1408983056 1625749680 1761228820 2113474584 2641843230 3522457640 4226949168 5283686460 7044915280 10567372920 21134745840
• Sum of all divisors σ(n): 70651478016
• Sum of proper divisors (its aliquot sum) s(n): 49516732176
• 21134745840 is an abundant number, because the sum of its proper divisors (49516732176) is greater than itself. Its abundance is 28381986336

Bases of 21134745840

• Binary: 10011101011101110101010000011110000₂
• Hexadecimal: 0x4EBBAA0F0
• Base-36: 9PJ2Y9C

Squares and roots of 21134745840

• 21134745840 squared (21134745840²) is 446677481721397305600
• 21134745840 cubed (21134745840³) is 9440415048632977743516808704000
• The square root of 21134745840 is 145377.9413803897
• The cube root of 21134745840 is 2764.8124503959

Scales and comparisons

• 21,134,745,840 seconds is equal to 672 years, 1 week, 2 hours, 44 minutes.
• To count from 1 to 21,134,745,840 would take you about one thousand, three hundred forty-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 21134745840 cubic inches would be around 230.4 feet tall.

Recreational maths with 21134745840

• 21134745840 backwards is 04854743112
• 21134745840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21134745840's digits is 39
• More coming soon!