21678678956772

Names of 21678678956772

• Cardinal: 21678678956772 can be written as Twenty-one trillion, six hundred seventy-eight billion, six hundred seventy-eight million, nine hundred fifty-six thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 2.1678678956772 × 10¹³

Factors of 21678678956772

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 135776

Divisors of 21678678956772

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 9 12 18 19 27 31 36 38 54 57 62 76 81 93 108 114 124 162 171 186 228 243 279 324 342 372 486 513 558 589 684 729 837 961 972 1026 1116 1178 1458 1539 1674 1767 1922 2052 2187 2356 2511 2883 2916 3078 3348 3534 3844 4374 4617 5022 5301 5766 6156 7068 7533 8649 8748 9234 10044 10602 11532 13851 15066 15903 17298 18259 18468 21204 22599 25947 27702 30132 31806 34596 36518 41553 45198 47709 51894 54777 55404 63612 67797 73036 77841 83106 90396 95418 103788 109554 135594 135721 143127 155682 164331 166212 190836 219108 233523 271188 271442 286254 311364 328662 407163 429381 467046 492993 542884 572508 657324 700569 814326 858762 934092 985986 1221489 1288143 1401138 1478979 1628652 1717524 1971972 2101707 2442978 2576286 2578699 2802276 2957958 3664467 4203414 4207351 4436937 4885956 5152572 5157398 5915916 7328934 7736097 8406828 8414702 8873874 10314796 10993401 12622053 13310811 14657868 15472194 16829404 17747748 21986802 23208291 25244106 26621622 30944388 32980203 37866159 39932433 43973604 46416582 50488212 53243244 65960406 69624873 75732318 79864866 79939669 92833164 98940609 113598477 130427881 131920812 139249746 151464636 159729732 159879338 197881218 208874619 227196954 239819007 260855762 278499492 296821827 319758676 340795431 391283643 395762436 417749238 454393908 479638014 521711524 593643654 626623857 681590862 719457021 782567286 835498476 959276028 1022386293 1173850929 1187287308 1253247714 1363181724 1438914042 1565134572 1879871571 2044772586 2158371063 2347701858 2478129739 2506495428 2877828084 3067158879 3521552787 3759743142 4089545172 4316742126 4695403716 4956259478 5639614713 6134317758 6475113189 7043105574 7434389217 7519486284 8633484252 9201476637 9912518956 10564658361 11279229426 12268635516 12950226378 14086211148 14868778434 18402953274 19425339567 21129316722 22303167651 22558458852 25900452756 29737556868 31693975083 36805906548 38850679134 42258633444 44606335302 58276018701 63387950166 66909502953 77701358268 89212670604 95081925249 116552037402 126775900332 133819005906 174828056103 190163850498 200728508859 233104074804 267638011812 285245775747 349656112206 380327700996 401457017718 570491551494 602185526577 699312224412 802914035436 1140983102988 1204371053154 1806556579731 2408742106308 3613113159462 5419669739193 7226226318924 10839339478386 21678678956772
• Sum of all divisors σ(n): 61887277603200
• Sum of proper divisors (its aliquot sum) s(n): 40208598646428
• 21678678956772 is an abundant number, because the sum of its proper divisors (40208598646428) is greater than itself. Its abundance is 18529919689656

Bases of 21678678956772

• Binary: 100111011011101110101111101010101101011100100₂
• Hexadecimal: 0x13B775F55AE4
• Base-36: 7ON1PQ290

Squares and roots of 21678678956772

• 21678678956772 squared (21678678956772²) is 469965121310789130244659984
• 21678678956772 cubed (21678678956772³) is 10188222985777004527240382735064974211648
• The square root of 21678678956772 is 4656036.8294045957
• The cube root of 21678678956772 is 27883.3064136113

Scales and comparisons

• 21,678,678,956,772 seconds is equal to 689,314 years, 48 weeks, 4 days, 1 hour, 46 minutes, 12 seconds.
• To count from 1 to 21,678,678,956,772 would take you about one million, seven hundred twenty-three thousand, two hundred eighty-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 21678678956772 cubic inches would be around 2323.6 feet tall.

Recreational maths with 21678678956772

• 21678678956772 backwards is 27765987687612
• 21678678956772 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21678678956772's digits is 81
• More coming soon!