21279027140

Names of 21279027140

• Cardinal: 21279027140 can be written as Twenty-one billion, two hundred seventy-nine million, twenty-seven thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.127902714 × 10¹⁰

Factors of 21279027140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 772

Divisors of 21279027140

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 35 49 67 70 98 134 140 196 245 268 335 343 469 490 670 686 691 938 980 1340 1372 1382 1715 1876 2345 2764 3283 3430 3455 4489 4690 4837 6566 6860 6910 8978 9380 9674 13132 13820 16415 17956 19348 22445 22981 24185 31423 32830 33859 44890 45962 46297 48370 62846 65660 67718 89780 91924 92594 96740 114905 125692 135436 157115 169295 185188 219961 229810 231485 237013 314230 324079 338590 439922 459620 462970 474026 628460 648158 677180 879844 925940 948052 1099805 1185065 1296316 1539727 1620395 2199610 2268553 2370130 3079454 3101899 3240790 4399220 4537106 4740260 6158908 6203798 6481580 7698635 9074212 11342765 12407596 15397270 15509495 15879871 21713293 22685530 30794540 31018990 31759742 43426586 45371060 62037980 63519484 79399355 86853172 108566465 151993051 158798710 217132930 303986102 317597420 434265860 607972204 759965255 1063951357 1519930510 2127902714 3039861020 4255805428 5319756785 10639513570 21279027140
• Sum of all divisors σ(n): 52977859200
• Sum of proper divisors (its aliquot sum) s(n): 31698832060
• 21279027140 is an abundant number, because the sum of its proper divisors (31698832060) is greater than itself. Its abundance is 10419804920

Bases of 21279027140

• Binary: 10011110100010101000010111111000100₂
• Hexadecimal: 0x4F4542FC4
• Base-36: 9RWZEF8

Squares and roots of 21279027140

• 21279027140 squared (21279027140²) is 452796996024856579600
• 21279027140 cubed (21279027140³) is 9635079567323395271915970344000
• The square root of 21279027140 is 145873.3256630561
• The cube root of 21279027140 is 2771.0897344509

Scales and comparisons

• 21,279,027,140 seconds is equal to 676 years, 31 weeks, 4 days, 52 minutes, 20 seconds.
• To count from 1 to 21,279,027,140 would take you about one thousand, three hundred fifty-three 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 21279027140 cubic inches would be around 230.9 feet tall.

Recreational maths with 21279027140

• 21279027140 backwards is 04172097212
• 21279027140 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21279027140's digits is 35
• More coming soon!