21023751408

Names of 21023751408

• Cardinal: 21023751408 can be written as Twenty-one billion, twenty-three million, seven hundred fifty-one thousand, four hundred eight.

Scientific notation

• Scientific notation: 2.1023751408 × 10¹⁰

Factors of 21023751408

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10765

Divisors of 21023751408

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 19 22 24 33 38 44 48 57 66 76 88 114 132 152 176 199 209 228 264 304 398 418 456 528 597 627 796 836 912 1194 1254 1592 1672 2189 2388 2508 3184 3344 3781 4378 4776 5016 6567 7562 8756 9552 10032 10531 11343 13134 15124 17512 21062 22686 26268 30248 31593 35024 41591 42124 45372 52536 60496 63186 83182 84248 90744 105072 115841 124773 126372 166364 168496 181488 200089 231682 249546 252744 332728 347523 400178 463364 499092 505488 600267 665456 695046 800356 926728 998184 1200534 1390092 1600712 1853456 1996368 2095669 2200979 2401068 2780184 3201424 4191338 4401958 4802136 5560368 6287007 6602937 8382676 8803916 9604272 12574014 13205874 16765352 17607832 23052359 25148028 26411748 33530704 35215664 39817711 46104718 50296056 52823496 69157077 79635422 92209436 100592112 105646992 119453133 138314154 159270844 184418872 238906266 276628308 318541688 368837744 437994821 477812532 553256616 637083376 875989642 955625064 1106513232 1313984463 1751979284 1911250128 2627968926 3503958568 5255937852 7007917136 10511875704 21023751408
• Sum of all divisors σ(n): 62686464000
• Sum of proper divisors (its aliquot sum) s(n): 41662712592
• 21023751408 is an abundant number, because the sum of its proper divisors (41662712592) is greater than itself. Its abundance is 20638961184

Bases of 21023751408

• Binary: 10011100101000111001111110011110000₂
• Hexadecimal: 0x4E51CFCF0
• Base-36: 9NOZYEO

Squares and roots of 21023751408

• 21023751408 squared (21023751408²) is 441998123265381982464
• 21023751408 cubed (21023751408³) is 9292458666333932011485351309312
• The square root of 21023751408 is 144995.6944464215
• The cube root of 21023751408 is 2759.9639167725

Scales and comparisons

• 21,023,751,408 seconds is equal to 668 years, 25 weeks, 3 days, 10 hours, 56 minutes, 48 seconds.
• To count from 1 to 21,023,751,408 would take you about one thousand, three hundred thirty-six 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 21023751408 cubic inches would be around 230 feet tall.

Recreational maths with 21023751408

• 21023751408 backwards is 80415732012
• 21023751408 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21023751408's digits is 33
• More coming soon!