21139594812

Names of 21139594812

• Cardinal: 21139594812 can be written as Twenty-one billion, one hundred thirty-nine million, five hundred ninety-four thousand, eight hundred twelve.

Scientific notation

• Scientific notation: 2.1139594812 × 10¹⁰

Factors of 21139594812

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 126

Divisors of 21139594812

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 43 54 63 71 81 84 86 108 126 129 142 162 172 189 213 252 258 284 301 324 378 387 426 497 516 567 602 639 756 774 852 903 994 1134 1161 1204 1278 1491 1548 1806 1849 1917 1988 2268 2322 2556 2709 2982 3053 3483 3612 3698 3834 4473 4644 5041 5418 5547 5751 5964 6106 6966 7396 7668 8127 8946 9159 10082 10836 11094 11502 12212 12943 13419 13932 15123 16254 16641 17892 18318 20164 21371 22188 23004 24381 25886 26838 27477 30246 32508 33282 35287 36636 38829 40257 42742 45369 48762 49923 51772 53676 54954 60492 64113 66564 70574 77658 80514 82431 85484 90738 97524 99846 105861 109908 116487 128226 131279 136107 141148 149769 155316 161028 164862 181476 192339 199692 211722 216763 232974 247293 256452 262558 272214 299538 317583 329724 349461 384678 393837 408321 423444 433526 465948 494586 525116 544428 577017 599076 635166 650289 698922 769356 787674 816642 867052 918953 952749 989172 1048383 1154034 1181511 1270332 1300578 1397844 1517341 1575348 1633284 1731051 1837906 1905498 1950867 2096766 2308068 2363022 2601156 2756859 2858247 3034682 3462102 3544533 3675812 3810996 3901734 4193532 4552023 4726044 5513718 5716494 5852601 6069364 6924204 7089066 7803468 8270577 9104046 9320809 10633599 11027436 11432988 11705202 13656069 14178132 16541154 17557803 18208092 18641618 21267198 23410404 24811731 27312138 27962427 33082308 35115606 37283236 40968207 42534396 49623462 54624276 55924854 65245663 70231212 74435193 81936414 83887281 99246924 111849708 122904621 130491326 148870386 163872828 167774562 195736989 245809242 251661843 260982652 297740772 335549124 391473978 491618484 503323686 587210967 754985529 782947956 1006647372 1174421934 1509971058 1761632901 2348843868 3019942116 3523265802 5284898703 7046531604 10569797406 21139594812
• Sum of all divisors σ(n): 65584287384
• Sum of proper divisors (its aliquot sum) s(n): 44444692572
• 21139594812 is an abundant number, because the sum of its proper divisors (44444692572) is greater than itself. Its abundance is 23305097760

Bases of 21139594812

• Binary: 10011101100000001001001111000111100₂
• Hexadecimal: 0x4EC049E3C
• Base-36: 9PLYVR0

Squares and roots of 21139594812

• 21139594812 squared (21139594812²) is 446882468815537315344
• 21139594812 cubed (21139594812³) is 9446914319346684416438430395328
• The square root of 21139594812 is 145394.6175482435
• The cube root of 21139594812 is 2765.0238790561

Scales and comparisons

• 21,139,594,812 seconds is equal to 672 years, 9 weeks, 5 hours, 40 minutes, 12 seconds.
• To count from 1 to 21,139,594,812 would take you about one thousand, three hundred forty-four 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 21139594812 cubic inches would be around 230.4 feet tall.

Recreational maths with 21139594812

• 21139594812 backwards is 21849593112
• The number of decimal digits it has is: 11
• The sum of 21139594812's digits is 45
• More coming soon!