21278788104

Names of 21278788104

• Cardinal: 21278788104 can be written as Twenty-one billion, two hundred seventy-eight million, seven hundred eighty-eight thousand, one hundred four.

Scientific notation

• Scientific notation: 2.1278788104 × 10¹⁰

Factors of 21278788104

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1880

Divisors of 21278788104

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 53 56 57 73 76 84 106 114 133 146 152 159 168 212 219 228 266 292 318 371 399 424 438 456 511 532 584 636 742 798 876 1007 1022 1064 1113 1272 1387 1484 1533 1596 1723 1752 2014 2044 2226 2774 2968 3021 3066 3192 3446 3869 4028 4088 4161 4452 5169 5548 6042 6132 6892 7049 7738 8056 8322 8904 9709 10338 11096 11607 12061 12084 12264 13784 14098 15476 16644 19418 20676 21147 23214 24122 24168 27083 28196 29127 30952 32737 33288 36183 38836 41352 42294 46428 48244 54166 56392 58254 65474 72366 73511 77672 81249 84588 91319 92856 96488 98211 108332 116508 125779 130948 144732 147022 162498 169176 182638 196422 216664 220533 229159 233016 251558 261896 273957 289464 294044 324996 365276 377337 392844 441066 458318 503116 514577 547914 588088 639233 649992 687477 730552 754674 785688 880453 882132 916636 1006232 1029154 1095828 1278466 1374954 1509348 1543731 1735061 1760906 1764264 1833272 1917699 2058308 2191656 2389801 2556932 2641359 2749908 3018696 3087462 3470122 3521812 3835398 4116616 4779602 5113864 5205183 5282718 5499816 6174924 6666287 6940244 7043624 7169403 7670796 9559204 10410366 10565436 12145427 12349848 13332574 13880488 14338806 15341592 16728607 19118408 19998861 20820732 21130872 24290854 26665148 28677612 33457214 36436281 39997722 41641464 46664009 48581708 50185821 53330296 57355224 66914428 72872562 79995444 93328018 97163416 100371642 126659453 133828856 139992027 145745124 159990888 186656036 200743284 253318906 279984054 291490248 373312072 379978359 401486568 506637812 559968108 759956718 886616171 1013275624 1119936216 1519913436 1773232342 2659848513 3039826872 3546464684 5319697026 7092929368 10639394052 21278788104
• Sum of all divisors σ(n): 66135398400
• Sum of proper divisors (its aliquot sum) s(n): 44856610296
• 21278788104 is an abundant number, because the sum of its proper divisors (44856610296) is greater than itself. Its abundance is 23577822192

Bases of 21278788104

• Binary: 10011110100010100001000101000001000₂
• Hexadecimal: 0x4F4508A08
• Base-36: 9RWU9ZC

Squares and roots of 21278788104

• 21278788104 squared (21278788104²) is 452786823174931914816
• 21278788104 cubed (21278788104³) is 9634754866622692739996642148864
• The square root of 21278788104 is 145872.5063334417
• The cube root of 21278788104 is 2771.0793581511

Scales and comparisons

• 21,278,788,104 seconds is equal to 676 years, 31 weeks, 1 day, 6 hours, 28 minutes, 24 seconds.
• To count from 1 to 21,278,788,104 would take you about one thousand, three hundred fifty-three 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 21278788104 cubic inches would be around 230.9 feet tall.

Recreational maths with 21278788104

• 21278788104 backwards is 40188787212
• The number of decimal digits it has is: 11
• The sum of 21278788104's digits is 48
• More coming soon!