21910371021

Names of 21910371021

• Cardinal: 21910371021 can be written as Twenty-one billion, nine hundred ten million, three hundred seventy-one thousand and twenty-one.

Scientific notation

• Scientific notation: 2.1910371021 × 10¹⁰

Factors of 21910371021

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1088

Divisors of 21910371021

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 11 21 23 27 33 49 63 67 69 77 99 147 161 189 201 207 231 253 297 441 469 483 539 603 621 693 737 759 977 1127 1323 1407 1449 1541 1617 1771 1809 2079 2211 2277 2931 3283 3381 4221 4347 4623 4851 5159 5313 6633 6831 6839 8793 9849 10143 10747 10787 12397 12663 13869 14553 15477 15939 16951 19899 20517 22471 26379 29547 30429 32241 32361 36113 37191 41607 46431 47817 47873 50853 61551 65459 67413 75229 75509 88641 96723 97083 108339 111573 118657 139293 143619 152559 157297 184653 196377 202239 225687 226527 247181 290169 291249 325017 334719 355971 430857 457677 458213 471891 526603 589131 606717 677061 679581 720049 741543 830599 975051 1067913 1101079 1292571 1374639 1415673 1505557 1579809 1730267 1767393 2031183 2038743 2160147 2224629 2491797 3203739 3207491 3303237 4123917 4247019 4516671 4739427 5040343 5190801 6480441 6673887 7475391 9622473 9909711 10538899 12111869 12371751 13550013 14218281 15121029 15572403 16561127 19441323 22426173 28867419 29729133 31616697 35282401 36335607 40650039 45363087 46717209 49683381 73772293 86602257 94850091 105847203 109006821 115927889 136089261 149050143 221316879 284550273 317541609 327020463 347783667 447150429 663950637 811495223 952624827 1043351001 1991851911 2434485669 3130053003 7303457007 21910371021
• Sum of all divisors σ(n): 43669186560
• Sum of proper divisors (its aliquot sum) s(n): 21758815539
• 21910371021 is a deficient number, because the sum of its proper divisors (21758815539) is less than itself. Its deficiency is 151555482

Bases of 21910371021

• Binary: 10100011001111101011011101011001101₂
• Hexadecimal: 0x519F5BACD
• Base-36: A2CVAH9

Squares and roots of 21910371021

• 21910371021 squared (21910371021²) is 480064358277876582441
• 21910371021 cubed (21910371021³) is 10518388203826548537329803842261
• The square root of 21910371021 is 148021.5221547191
• The cube root of 21910371021 is 2798.2289404199

Scales and comparisons

• 21,910,371,021 seconds is equal to 696 years, 35 weeks, 3 days, 6 hours, 10 minutes, 21 seconds.
• To count from 1 to 21,910,371,021 would take you about one thousand, three hundred ninety-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 21910371021 cubic inches would be around 233.2 feet tall.

Recreational maths with 21910371021

• 21910371021 backwards is 12017301912
• 21910371021 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21910371021's digits is 27
• More coming soon!