21661849764

Names of 21661849764

• Cardinal: 21661849764 can be written as Twenty-one billion, six hundred sixty-one million, eight hundred forty-nine thousand, seven hundred sixty-four.

Scientific notation

• Scientific notation: 2.1661849764 × 10¹⁰

Factors of 21661849764

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 199

Divisors of 21661849764

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 9 12 18 19 27 36 38 43 54 57 59 73 76 81 86 108 114 118 129 146 162 171 172 177 219 228 236 258 292 324 342 354 361 387 438 513 516 531 657 684 708 722 774 817 876 1026 1062 1083 1121 1161 1314 1387 1444 1539 1548 1593 1634 1971 2052 2124 2166 2242 2322 2451 2537 2628 2774 3078 3139 3186 3249 3268 3363 3483 3942 4161 4307 4332 4484 4644 4779 4902 5074 5548 5913 6156 6278 6372 6498 6726 6966 7353 7611 7884 8322 8614 9417 9558 9747 9804 10089 10148 11826 12483 12556 12921 12996 13452 13932 14706 15222 15523 16644 17228 18834 19116 19494 20178 21299 22059 22833 23652 24966 25842 26353 28251 29241 29412 30267 30444 31046 37449 37668 38763 38988 40356 42598 44118 45666 46569 48203 49932 51684 52706 56502 58482 59641 60534 62092 63897 66177 68499 74898 77526 79059 81833 84753 85196 88236 90801 91332 93138 96406 105412 112347 113004 116289 116964 119282 121068 127794 132354 136998 139707 144609 149796 155052 158118 163666 169506 178923 181602 185201 186276 191691 192812 205497 224694 232578 237177 238564 245499 254259 255588 264708 273996 279414 289218 316236 327332 339012 348867 357846 363204 370402 383382 410994 419121 433827 449388 465156 474354 490998 508518 536769 555603 558828 575073 578436 697734 711531 715692 736497 740804 766764 821988 838242 867654 915857 948708 981996 1017036 1073538 1111206 1133179 1150146 1257363 1301481 1395468 1423062 1472994 1554827 1610307 1666809 1676484 1725219 1735308 1831714 2134593 2147076 2209491 2222412 2266358 2300292 2514726 2602962 2747571 2846124 2945988 3109654 3220614 3333618 3399537 3450438 3518819 3663428 3904443 4269186 4418982 4532716 4664481 4830921 5000427 5029452 5205924 5495142 6219308 6441228 6628473 6667236 6799074 6900876 7037638 7808886 8242713 8538372 8837964 9328962 9661842 10000854 10198611 10556457 10990284 13256946 13598148 13993443 14075276 15001281 15617772 16485426 18657924 19323684 20001708 20397222 21112914 24728139 26513892 27986886 30002562 30595833 31669371 32970852 40794444 41980329 42225828 49456278 55973772 60005124 61191666 63338742 66857561 74184417 83960658 91787499 95008113 98912556 122383332 125940987 126677484 133715122 148368834 167921316 183574998 190016226 200572683 251881974 267430244 285024339 296737668 367149996 380032452 401145366 503763948 570048678 601718049 802290732 1140097356 1203436098 1805154147 2406872196 3610308294 5415462441 7220616588 10830924882 21661849764
• Sum of all divisors σ(n): 63044039520
• Sum of proper divisors (its aliquot sum) s(n): 41382189756
• 21661849764 is an abundant number, because the sum of its proper divisors (41382189756) is greater than itself. Its abundance is 19720339992

Bases of 21661849764

• Binary: 10100001011001001011001100010100100₂
• Hexadecimal: 0x50B2598A4
• Base-36: 9Y8WM90

Squares and roots of 21661849764

• 21661849764 squared (21661849764²) is 469235735198106855696
• 21661849764 cubed (21661849764³) is 10164513999761477485305179655744
• The square root of 21661849764 is 147179.6513244953
• The cube root of 21661849764 is 2787.6089260767

Scales and comparisons

• 21,661,849,764 seconds is equal to 688 years, 40 weeks, 3 days, 20 hours, 29 minutes, 24 seconds.
• To count from 1 to 21,661,849,764 would take you about one thousand, three hundred seventy-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 21661849764 cubic inches would be around 232.3 feet tall.

Recreational maths with 21661849764

• 21661849764 backwards is 46794816612
• 21661849764 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21661849764's digits is 54
• More coming soon!