21059215492

Names of 21059215492

• Cardinal: 21059215492 can be written as Twenty-one billion, fifty-nine million, two hundred fifteen thousand, four hundred ninety-two.

Scientific notation

• Scientific notation: 2.1059215492 × 10¹⁰

Factors of 21059215492

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 793

Divisors of 21059215492

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 14 28 31 49 62 73 79 98 124 146 158 196 217 292 316 434 511 553 601 868 1022 1106 1202 1519 2044 2212 2263 2404 2449 3038 3577 3871 4207 4526 4898 5767 6076 7154 7742 8414 9052 9796 11534 14308 15484 15841 16828 17143 18631 23068 29449 31682 34286 37262 40369 43873 47479 58898 63364 68572 74524 80738 87746 94958 110887 117796 120001 130417 161476 175492 178777 189916 221774 240002 260834 282583 307111 332353 357554 443548 480004 521668 565166 614222 664706 715108 912919 1130332 1228444 1251439 1329412 1360063 1471849 1825838 2149777 2326471 2502878 2720126 2943698 3465967 3651676 4299554 4652942 5005756 5440252 5887396 6931934 8599108 8760073 9305884 9520441 10302943 13863868 17520146 19040882 20605886 24261769 35040292 38081764 41211772 48523538 66643087 72120601 97047076 107444977 133286174 144241202 169832383 214889954 266572348 288482404 339664766 429779908 679329532 752114839 1504229678 3008459356 5264803873 10529607746 21059215492
• Sum of all divisors σ(n): 45503109120
• Sum of proper divisors (its aliquot sum) s(n): 24443893628
• 21059215492 is an abundant number, because the sum of its proper divisors (24443893628) is greater than itself. Its abundance is 3384678136

Bases of 21059215492

• Binary: 10011100111001110100010000010000100₂
• Hexadecimal: 0x4E73A2084
• Base-36: 9OA42O4

Squares and roots of 21059215492

• 21059215492 squared (21059215492²) is 443490557138492802064
• 21059215492 cubed (21059215492³) is 9339563211446658806756678375488
• The square root of 21059215492 is 145117.9364930471
• The cube root of 21059215492 is 2761.5149340875

Scales and comparisons

• 21,059,215,492 seconds is equal to 669 years, 32 weeks, 22 hours, 4 minutes, 52 seconds.
• To count from 1 to 21,059,215,492 would take you about one thousand, three hundred thirty-nine 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 21059215492 cubic inches would be around 230.1 feet tall.

Recreational maths with 21059215492

• 21059215492 backwards is 29451295012
• The number of decimal digits it has is: 11
• The sum of 21059215492's digits is 40
• More coming soon!