21608820072

Names of 21608820072

• Cardinal: 21608820072 can be written as Twenty-one billion, six hundred eight million, eight hundred twenty thousand and seventy-two.

Scientific notation

• Scientific notation: 2.1608820072 × 10¹⁰

Factors of 21608820072

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 224

Divisors of 21608820072

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 31 36 41 42 49 56 61 62 63 72 79 82 84 93 98 122 123 124 126 147 158 164 168 183 186 196 217 237 244 246 248 252 279 287 294 316 328 366 369 372 392 427 434 441 474 488 492 504 549 553 558 574 588 632 651 711 732 738 744 854 861 868 882 948 984 1098 1106 1116 1148 1176 1271 1281 1302 1422 1464 1476 1519 1659 1708 1722 1736 1764 1891 1896 1953 2009 2196 2212 2232 2296 2449 2501 2542 2562 2583 2604 2844 2952 2989 3038 3239 3318 3416 3444 3528 3782 3813 3843 3871 3906 4018 4392 4424 4557 4819 4898 4977 5002 5084 5124 5166 5208 5673 5688 5978 6027 6076 6478 6636 6888 7347 7503 7564 7626 7686 7742 7812 8036 8897 8967 9114 9638 9717 9796 9954 10004 10168 10248 10332 11346 11439 11613 11956 12054 12152 12956 13237 13272 13671 14457 14694 15006 15128 15252 15372 15484 15624 16072 17019 17143 17507 17794 17934 18081 18228 19276 19434 19592 19908 20008 20664 22041 22509 22673 22692 22878 23226 23912 24108 25912 26474 26691 26901 27342 28914 29151 29388 30012 30504 30744 30968 33733 34038 34286 34839 35014 35588 35868 36162 36456 38552 38868 39711 39816 43371 44082 45018 45346 45384 45756 46452 48216 51429 52521 52948 53382 53802 54684 57828 58302 58776 60024 62279 67466 68019 68076 68572 69678 70028 71176 71736 72324 77531 77736 79422 80073 86742 88164 90036 90692 91512 92659 92904 100409 101199 102858 105042 105896 106764 107604 109368 115656 116604 119133 120001 122549 124558 134932 136038 136152 137144 139356 140056 144648 149389 154287 155062 157563 158711 158844 160146 173484 176328 180072 181384 185318 186837 197579 200818 202398 204057 205716 210084 213528 215208 232593 233208 236131 238266 240002 245098 249116 269864 272076 277977 278712 298778 301227 303597 308574 310124 315126 317422 317688 320292 346968 360003 367647 370636 373674 395158 401636 404796 408114 411432 420168 448167 465186 472262 476133 476532 480004 490196 498232 542717 544152 555954 560511 592737 597556 602454 607194 617148 620248 630252 634844 640584 697779 702863 708393 720006 735294 741272 747348 790316 803272 809592 816228 833931 896334 903681 930372 944524 952266 953064 960008 980392 1045723 1080009 1085434 1102941 1111908 1121022 1185474 1195112 1204908 1214388 1234296 1260504 1269688 1344501 1383053 1395558 1405726 1416786 1428399 1440012 1470588 1494696 1580632 1628151 1632456 1667862 1778211 1792668 1807362 1860744 1889048 1904532 2091446 2108589 2125179 2160018 2170868 2205882 2223816 2242044 2370948 2409816 2428776 2689002 2766106 2791116 2811452 2833572 2856798 2880024 2941176 3137169 3256302 3335724 3556422 3585336 3614724 3799019 3809064 4149159 4182892 4217178 4250358 4320036 4341736 4411764 4484088 4741896 4884453 4920041 5378004 5532212 5582232 5622904 5667144 5713596 6124949 6274338 6325767 6512604 6671448 7112844 7229448 7320061 7598038 8298318 8365784 8434356 8500716 8640072 8823528 9411507 9681371 9768906 9840082 10756008 11064424 11397057 11427192 12249898 12447477 12548676 12651534 13025208 14225688 14640122 14760123 15196076 16596636 16868712 17001432 18374847 18823014 19362742 19537812 19680164 21960183 22794114 24499796 24894954 25097352 25303068 29044113 29280244 29520246 30392152 33193272 34191171 36749694 37646028 38725484 39075624 39360328 42874643 43920366 44280369 45588228 48999592 49789908 50606136 55124541 58088226 58560488 59040492 65880549 68382342 73499388 75292056 77450968 85749286 87132339 87840732 88560738 91176456 99579816 110249082 116176452 118080984 128623929 131761098 136764684 146998776 171498572 174264678 175681464 177121476 220498164 232352904 257247858 263522196 273529368 300122501 342997144 348529356 354242952 385871787 440996328 514495716 527044392 600245002 697058712 771743574 900367503 1028991432 1200490004 1543487148 1800735006 2400980008 2701102509 3086974296 3601470012 5402205018 7202940024 10804410036 21608820072
• Sum of all divisors σ(n): 74095257600
• Sum of proper divisors (its aliquot sum) s(n): 52486437528
• 21608820072 is an abundant number, because the sum of its proper divisors (52486437528) is greater than itself. Its abundance is 30877617456

Bases of 21608820072

• Binary: 10100000111111111000110110101101000₂
• Hexadecimal: 0x507FC6D68
• Base-36: 9XDC0A0

Squares and roots of 21608820072

• 21608820072 squared (21608820072²) is 466941104904070085184
• 21608820072 cubed (21608820072³) is 10090046320092927291218769013248
• The square root of 21608820072 is 146999.3879987261
• The cube root of 21608820072 is 2785.3323147663

Scales and comparisons

• 21,608,820,072 seconds is equal to 687 years, 4 weeks, 6 days, 2 hours, 1 minute, 12 seconds.
• To count from 1 to 21,608,820,072 would take you about one thousand, three hundred seventy-four 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 21608820072 cubic inches would be around 232.1 feet tall.

Recreational maths with 21608820072

• 21608820072 backwards is 27002880612
• 21608820072 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21608820072's digits is 36
• More coming soon!