21406602168

Names of 21406602168

• Cardinal: 21406602168 can be written as Twenty-one billion, four hundred six million, six hundred two thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1406602168 × 10¹⁰

Factors of 21406602168

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7861

Divisors of 21406602168

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 19 21 24 28 36 38 41 42 49 56 57 63 72 76 82 84 98 114 123 126 133 147 152 164 168 171 196 228 246 252 266 287 294 328 342 369 392 399 441 456 492 504 532 574 588 684 738 779 798 861 882 931 984 1064 1148 1176 1197 1368 1476 1558 1596 1722 1764 1862 2009 2296 2337 2394 2583 2793 2952 3116 3192 3444 3528 3724 4018 4674 4788 5166 5453 5586 6027 6232 6888 7011 7448 7789 8036 8379 9348 9576 10332 10906 11172 12054 14022 15578 16072 16359 16758 18081 18696 20664 21812 22344 23367 24108 28044 31156 32718 33516 36162 38171 43624 46734 48216 49077 54523 56088 62312 65436 67032 70101 72324 76342 93468 98154 109046 114513 130872 140202 144648 147991 152684 163569 186936 196308 218092 229026 280404 295982 305368 319349 327138 343539 381661 392616 436184 443973 458052 490707 560808 591964 638698 654276 687078 763322 887946 916104 958047 981414 1035937 1144983 1183928 1277396 1308552 1331919 1374156 1526644 1775892 1916094 1962828 2071874 2235443 2289966 2554792 2663838 2748312 2874141 3053288 3107811 3434949 3551784 3832188 3925656 4143748 4470886 4579932 5327676 5748282 6067631 6215622 6706329 6869898 7251559 7664376 8287496 8941772 9159864 9323433 10655352 11496564 12135262 12431244 13412658 13739796 14503118 15648101 17883544 18202893 18646866 20118987 21754677 22993128 24270524 24862488 26825316 27479592 29006236 31296202 36405786 37293732 40237974 42473417 43509354 46944303 48541048 53650632 54608679 58012472 62592404 65264031 72811572 74587464 80475948 84946834 87018708 93888606 109217358 125184808 127420251 130528062 140832909 145623144 160951896 169893668 174037416 187777212 218434716 254840502 261056124 281665818 297313919 339787336 375554424 382260753 436869432 509681004 522112248 563331636 594627838 764521506 891941757 1019362008 1126663272 1189255676 1529043012 1783883514 2378511352 2675825271 3058086024 3567767028 5351650542 7135534056 10703301084 21406602168
• Sum of all divisors σ(n): 72732114000
• Sum of proper divisors (its aliquot sum) s(n): 51325511832
• 21406602168 is an abundant number, because the sum of its proper divisors (51325511832) is greater than itself. Its abundance is 29918909664

Bases of 21406602168

• Binary: 10011111011111011101101001110111000₂
• Hexadecimal: 0x4FBEED3B8
• Base-36: 9U0XRY0

Squares and roots of 21406602168

• 21406602168 squared (21406602168²) is 458242616379022300224
• 21406602168 cubed (21406602168³) is 9809417385249171081695425285632
• The square root of 21406602168 is 146309.9523887559
• The cube root of 21406602168 is 2776.6165801603

Scales and comparisons

• 21,406,602,168 seconds is equal to 680 years, 34 weeks, 3 days, 14 hours, 22 minutes, 48 seconds.
• To count from 1 to 21,406,602,168 would take you about one thousand, three hundred sixty-one 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 21406602168 cubic inches would be around 231.4 feet tall.

Recreational maths with 21406602168

• 21406602168 backwards is 86120660412
• 21406602168 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21406602168's digits is 36
• More coming soon!