21820196920

Names of 21820196920

• Cardinal: 21820196920 can be written as Twenty-one billion, eight hundred twenty million, one hundred ninety-six thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.182019692 × 10¹⁰

Factors of 21820196920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 388

Divisors of 21820196920

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 20 31 40 43 62 86 124 155 172 215 248 307 310 344 430 614 620 860 961 1228 1240 1333 1535 1720 1849 1922 2456 2666 3070 3698 3844 4805 5332 6140 6665 7396 7688 9245 9517 9610 10664 12280 13201 13330 14792 18490 19034 19220 26402 26660 36980 38068 38440 41323 47585 52804 53320 57319 66005 73960 76136 82646 95170 105608 114638 132010 165292 190340 206615 229276 264020 286595 295027 330584 380680 409231 413230 458552 528040 567643 573190 590054 818462 826460 1135286 1146380 1180108 1475135 1636924 1652920 1776889 2046155 2270572 2292760 2360216 2838215 2950270 3273848 3553778 4092310 4541144 5676430 5900540 7107556 8184620 8884445 11352860 11801080 12686161 14215112 16369240 17596933 17768890 22705720 25372322 35193866 35537780 50744644 63430805 70387732 71075560 87984665 101489288 126861610 140775464 175969330 253723220 351938660 507446440 545504923 703877320 1091009846 2182019692 2727524615 4364039384 5455049230 10910098460 21820196920
• Sum of all divisors σ(n): 52106642280
• Sum of proper divisors (its aliquot sum) s(n): 30286445360
• 21820196920 is an abundant number, because the sum of its proper divisors (30286445360) is greater than itself. Its abundance is 8466248440

Bases of 21820196920

• Binary: 10100010100100101011100100000111000₂
• Hexadecimal: 0x51495C838
• Base-36: A0V6JP4

Squares and roots of 21820196920

• 21820196920 squared (21820196920²) is 476120993627577486400
• 21820196920 cubed (21820196920³) is 10389053838699805895806621888000
• The square root of 21820196920 is 147716.6101696083
• The cube root of 21820196920 is 2794.3848744947

Scales and comparisons

• 21,820,196,920 seconds is equal to 693 years, 42 weeks, 2 days, 13 hours, 48 minutes, 40 seconds.
• To count from 1 to 21,820,196,920 would take you about one thousand, three hundred eighty-seven 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 21820196920 cubic inches would be around 232.9 feet tall.

Recreational maths with 21820196920

• 21820196920 backwards is 02969102812
• 21820196920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21820196920's digits is 40
• More coming soon!