21479749900

Names of 21479749900

• Cardinal: 21479749900 can be written as Twenty-one billion, four hundred seventy-nine million, seven hundred forty-nine thousand, nine hundred.

Scientific notation

• Scientific notation: 2.14797499 × 10¹⁰

Factors of 21479749900

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 34141

Divisors of 21479749900

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 17 20 25 28 34 35 50 53 68 70 85 100 106 119 140 170 175 212 238 265 340 350 371 425 476 530 595 700 742 850 901 1060 1190 1325 1484 1700 1802 1855 2380 2650 2975 3604 3710 4505 5300 5950 6307 7420 9010 9275 11900 12614 18020 18550 22525 25228 31535 34057 37100 45050 63070 68114 90100 126140 136228 157675 170285 238399 315350 340570 476798 578969 630700 681140 851425 953596 1157938 1191995 1702850 1805021 2315876 2383990 2894845 3405700 3610042 4052783 4767980 5789690 5959975 7220084 8105566 9025105 11579380 11919950 12635147 14474225 16211132 18050210 20263915 23839900 25270294 28948450 30685357 36100420 40527830 45125525 50540588 57896900 61370714 63175735 81055660 90251050 101319575 122741428 126351470 153426785 180502100 202639150 214797499 252702940 306853570 315878675 405278300 429594998 613707140 631757350 767133925 859189996 1073987495 1263514700 1534267850 2147974990 3068535700 4295949980 5369937475 10739874950 21479749900
• Sum of all divisors σ(n): 57469196736
• Sum of proper divisors (its aliquot sum) s(n): 35989446836
• 21479749900 is an abundant number, because the sum of its proper divisors (35989446836) is greater than itself. Its abundance is 14509696936

Bases of 21479749900

• Binary: 10100000000010010101111100100001100₂
• Hexadecimal: 0x5004AF90C
• Base-36: 9V8HL3G

Squares and roots of 21479749900

• 21479749900 squared (21479749900²) is 461379655766550010000
• 21479749900 cubed (21479749900³) is 9910319614813587000642499000000
• The square root of 21479749900 is 146559.7144511411
• The cube root of 21479749900 is 2779.7756103069

Scales and comparisons

• 21,479,749,900 seconds is equal to 682 years, 51 weeks, 3 days, 5 hours, 11 minutes, 40 seconds.
• To count from 1 to 21,479,749,900 would take you about one thousand, three hundred sixty-five 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 21479749900 cubic inches would be around 231.6 feet tall.

Recreational maths with 21479749900

• 21479749900 backwards is 00994797412
• The number of decimal digits it has is: 11
• The sum of 21479749900's digits is 52
• More coming soon!