21364729568

Names of 21364729568

• Cardinal: 21364729568 can be written as Twenty-one billion, three hundred sixty-four million, seven hundred twenty-nine thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1364729568 × 10¹⁰

Factors of 21364729568

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1921

Divisors of 21364729568

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 43 52 56 86 91 97 104 112 172 182 194 208 224 301 344 364 388 416 559 602 679 688 728 776 1118 1204 1261 1358 1376 1456 1552 1759 2236 2408 2522 2716 2912 3104 3518 3913 4171 4472 4816 5044 5432 7036 7826 8342 8827 8944 9632 10088 10864 12313 14072 15652 16684 17654 17888 20176 21728 22867 24626 28144 29197 31304 33368 35308 40352 45734 49252 54223 56288 58394 62608 66736 70616 75637 91468 98504 108446 116788 125216 133472 141232 151274 160069 170623 182936 197008 216892 233576 282464 302548 320138 341246 365872 379561 394016 433784 467152 529459 605096 640276 682492 731744 759122 867568 934304 983281 1058918 1194361 1210192 1280552 1364984 1518244 1735136 1966562 2117836 2218099 2388722 2420384 2561104 2729968 3036488 3933124 4235672 4436198 4777444 5122208 5459936 6072976 6882967 7336789 7866248 8471344 8872396 9554888 12145952 13765934 14673578 15526693 15732496 16942688 17744792 19109776 27531868 29347156 31053386 31464992 35489584 38219552 51357523 55063736 58694312 62106772 70979168 95378257 102715046 110127472 117388624 124213544 190756514 205430092 220254944 234777248 248427088 381513028 410860184 496854176 667647799 763026056 821720368 1335295598 1526052112 1643440736 2670591196 3052104224 5341182392 10682364784 21364729568
• Sum of all divisors σ(n): 53548830720
• Sum of proper divisors (its aliquot sum) s(n): 32184101152
• 21364729568 is an abundant number, because the sum of its proper divisors (32184101152) is greater than itself. Its abundance is 10819371584

Bases of 21364729568

• Binary: 10011111001011011111110011011100000₂
• Hexadecimal: 0x4F96FE6E0
• Base-36: 9TC0AU8

Squares and roots of 21364729568

• 21364729568 squared (21364729568²) is 456451669513773466624
• 21364729568 cubed (21364729568³) is 9751966480023880165635633938432
• The square root of 21364729568 is 146166.7868156101
• The cube root of 21364729568 is 2774.8049888337

Scales and comparisons

• 21,364,729,568 seconds is equal to 679 years, 17 weeks, 1 day, 23 hours, 6 minutes, 8 seconds.
• To count from 1 to 21,364,729,568 would take you about one thousand, three hundred fifty-eight 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 21364729568 cubic inches would be around 231.2 feet tall.

Recreational maths with 21364729568

• 21364729568 backwards is 86592746312
• The number of decimal digits it has is: 11
• The sum of 21364729568's digits is 53
• More coming soon!