1221117768

Names of 1221117768

• Cardinal: 1221117768 can be written as One billion, two hundred twenty-one million, one hundred seventeen thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.221117768 × 10⁹

Factors of 1221117768

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 458

Divisors of 1221117768

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 81 104 108 117 156 162 211 216 229 234 243 312 324 351 422 458 468 486 633 648 687 702 844 916 936 972 1053 1266 1374 1404 1688 1832 1899 1944 2061 2106 2532 2743 2748 2808 2977 3159 3798 4122 4212 5064 5486 5496 5697 5954 6183 6318 7596 8229 8244 8424 8931 10972 11394 11908 12366 12636 15192 16458 16488 17091 17862 18549 21944 22788 23816 24687 24732 25272 26793 32916 34182 35724 37098 45576 48319 49374 49464 51273 53586 55647 65832 68364 71448 74061 74196 80379 96638 98748 102546 107172 111294 136728 144957 148122 148392 160758 193276 197496 205092 214344 222183 222588 241137 289914 296244 321516 386552 410184 434871 444366 445176 482274 579828 592488 628147 643032 666549 723411 869742 888732 964548 1159656 1256294 1304613 1333098 1446822 1739484 1777464 1884441 1929096 2512588 2609226 2666196 2893644 3478968 3768882 3913839 5025176 5218452 5332392 5653323 5787288 7537764 7827678 10436904 11306646 11741517 15075528 15655356 16959969 22613292 23483034 31310712 33919938 45226584 46966068 50879907 67839876 93932136 101759814 135679752 152639721 203519628 305279442 407039256 610558884 1221117768
• Sum of all divisors σ(n): 3727214400
• Sum of proper divisors (its aliquot sum) s(n): 2506096632
• 1221117768 is an abundant number, because the sum of its proper divisors (2506096632) is greater than itself. Its abundance is 1284978864

Bases of 1221117768

• Binary: 1001000110010001100011101001000₂
• Hexadecimal: 0x48C8C748
• Base-36: K70SI0

Squares and roots of 1221117768

• 1221117768 squared (1221117768²) is 1491128603325301824
• 1221117768 cubed (1221117768³) is 1820843631893549941249208832
• The square root of 1221117768 is 34944.4955322007
• The cube root of 1221117768 is 1068.8559606853

Scales and comparisons

• 1,221,117,768 seconds is equal to 38 years, 43 weeks, 7 hours, 22 minutes, 48 seconds.
• To count from 1 to 1,221,117,768 would take you about seventy-seven 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 1221117768 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221117768

• 1221117768 backwards is 8677111221
• 1221117768 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1221117768's digits is 36
• More coming soon!