21691720949164

Names of 21691720949164

• Cardinal: 21691720949164 can be written as Twenty-one trillion, six hundred ninety-one billion, seven hundred twenty million, nine hundred forty-nine thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 2.1691720949164 × 10¹³

Factors of 21691720949164

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 196

Divisors of 21691720949164

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 14 28 31 49 62 67 89 98 124 134 178 196 217 268 343 356 434 469 623 686 868 938 961 1246 1372 1519 1876 1922 2077 2492 2759 3038 3283 3844 4154 4361 5518 5963 6076 6566 6727 7921 8308 8722 10633 11036 11926 13132 13454 14539 15842 17444 19313 21266 22981 23852 26908 29078 29791 30527 31684 38626 41741 42532 45962 47089 55447 58156 59582 61054 64387 77252 83482 85529 91924 94178 101773 110894 119164 122108 128774 135191 166964 171058 184853 188356 203546 208537 221788 245551 257548 270382 292187 329623 342116 369706 388129 407092 417074 450709 491102 530707 540764 584374 598703 659246 712411 739412 776258 834148 901418 946337 982204 1061414 1168748 1197406 1293971 1318492 1424822 1459759 1552516 1718857 1802836 1892674 1995997 2045309 2122828 2394812 2587942 2651399 2716903 2849644 2919518 3154963 3437714 3714949 3785348 3991994 4090618 4190921 5175884 5302798 5433806 5730443 5839036 6309926 6875428 7429898 7612081 7983988 8181236 8381842 9057797 10218313 10605596 10867612 11460886 12031999 12619852 13971979 14859796 15224162 16451917 16763684 18115594 18559793 20436626 22084741 22921772 24063998 26004643 27943958 29336447 30448324 32903834 36231188 37119586 40113101 40873252 44169482 48127996 52009286 53284567 55887916 58672894 63404579 65807668 74239172 80226202 84223993 88338964 97803853 104018572 106569134 115163419 117345788 126809158 129918551 160452404 168447986 177643733 182032501 195607706 213138268 230326838 235974511 253618316 259837102 280791707 336895972 355287466 364065002 372991969 391215412 460653676 471949022 510009427 519674204 561583414 684626971 710574932 728130004 745983938 806143933 909429857 943898044 1020018854 1123166828 1243506131 1369253942 1491967876 1612287866 1651821577 1818859714 1965541949 2040037708 2487012262 2610943783 2738507884 3224575732 3303643154 3570065989 3637719428 3931083898 4974024524 5221887566 5643007531 6607286308 7140131978 7862167796 8704542917 10443775132 11286015062 11562751039 14280263956 15810292237 17409085834 22572030124 23125502078 24990461923 31620584474 34818171668 46251004156 49980923846 60931800419 63241168948 80939257273 99961847692 110672045659 121863600838 161878514546 174933233461 221344091318 243727201676 323757029092 349866466922 442688182636 699732933844 774704319613 1549408639226 3098817278452 5422930237291 10845860474582 21691720949164
• Sum of all divisors σ(n): 46954662809600
• Sum of proper divisors (its aliquot sum) s(n): 25262941860436
• 21691720949164 is an abundant number, because the sum of its proper divisors (25262941860436) is greater than itself. Its abundance is 3571220911272

Bases of 21691720949164

• Binary: 100111011101001111111010100100101110110101100₂
• Hexadecimal: 0x13BA7F525DAC
• Base-36: 7OT1EL7ZG

Squares and roots of 21691720949164

• 21691720949164 squared (21691720949164²) is 470530757736400345072298896
• 21691720949164 cubed (21691720949164³) is 10206621894816686229324384538544629322944
• The square root of 21691720949164 is 4657437.1653479127
• The cube root of 21691720949164 is 27888.8968675609

Scales and comparisons

• 21,691,720,949,164 seconds is equal to 689,729 years, 32 weeks, 5 days, 1 hour, 26 minutes, 4 seconds.
• To count from 1 to 21,691,720,949,164 would take you about one million, seven hundred twenty-four thousand, three hundred twenty-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 21691720949164 cubic inches would be around 2324.1 feet tall.

Recreational maths with 21691720949164

• 21691720949164 backwards is 46194902719612
• The number of decimal digits it has is: 14
• The sum of 21691720949164's digits is 61
• More coming soon!