21291401877928

Names of 21291401877928

• Cardinal: 21291401877928 can be written as Twenty-one trillion, two hundred ninety-one billion, four hundred one million, eight hundred seventy-seven thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1291401877928 × 10¹³

Factors of 21291401877928

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 357

Divisors of 21291401877928

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 7 8 13 14 17 26 28 34 49 52 56 61 68 91 98 104 119 122 136 182 196 221 238 244 257 364 392 427 442 476 488 514 637 728 793 833 854 884 952 1028 1037 1274 1547 1586 1666 1708 1768 1799 2056 2074 2548 2989 3094 3172 3332 3341 3416 3598 3721 4148 4369 5096 5551 5978 6188 6344 6664 6682 7196 7259 7442 8296 8738 10829 11102 11956 12376 12593 13364 13481 14392 14518 14884 15677 17476 21658 22204 23387 23912 25186 26047 26728 26962 29036 29768 30583 31354 34952 38857 43316 44408 46774 48373 50372 50813 52094 53924 56797 58072 61166 62708 63257 66049 77714 86632 93548 94367 96746 100744 101626 104188 107848 109739 113594 122332 125416 126514 132098 155428 163709 182329 187096 188734 193492 203252 203801 208376 214081 219478 227188 244664 253028 264196 266509 310856 327418 338611 364658 377468 386984 397579 406504 407602 428162 438956 442799 454376 462343 506056 528392 533018 654836 660569 677222 729316 754936 768173 795158 815204 822341 856324 858637 877912 885598 924686 956297 1066036 1122833 1309672 1321138 1354444 1426607 1458632 1536346 1590316 1630408 1644682 1712648 1717274 1771196 1849372 1865563 1912594 2132072 2245666 2370277 2642276 2708888 2783053 2853214 3072692 3099593 3180632 3236401 3289364 3434548 3464617 3542392 3698744 3731126 3825188 4028989 4491332 4740554 5284552 5566106 5706428 5756387 6010459 6145384 6199186 6472802 6578728 6694079 6869096 6929234 7462252 7650376 7859831 8057978 8982664 9481108 9986249 11132212 11412856 11512774 12020918 12398372 12431861 12945604 13058941 13388158 13858468 14596829 14924504 15719662 16115956 16257049 18962216 19972498 22264424 23025548 24041836 24252319 24796744 24863722 25891208 26117882 26776316 27716936 28202923 29193658 31439324 32231912 32514098 39944996 40294709 42073213 46051096 46858553 48083672 48504638 49727444 52235764 52376857 53552632 55018817 56405846 58387316 62878648 65028196 68492813 79889992 80589418 84146426 87023027 93717106 97009276 99454888 102177803 104471528 104753714 110037634 112811692 113799343 116774632 130056392 136985626 161178836 168292852 169766233 174046054 187434212 194018552 197420461 204355606 209507428 211341637 220075268 225623384 227598686 245768329 273971252 322357672 336585704 339532466 348092108 366637999 374868424 394840922 408711212 419014856 422683274 440150536 455197372 479449691 491536658 547942504 609161189 679064932 696184216 715244621 733275998 789681844 796595401 817422424 845366548 890406569 910394744 958899382 983073316 1218322378 1358129864 1430489242 1466551996 1479391459 1579363688 1593190802 1690733096 1720378303 1780813138 1917798764 1966146632 2436644756 2566465993 2860978484 2933103992 2958782918 3186381604 3194988277 3356147837 3440756606 3561626276 3835597528 4178061593 4873289512 5132931986 5721956968 5917565836 6232845983 6372763208 6389976554 6712295674 6881513212 7123252552 8356123186 10265863972 10355740213 11835131672 12042648121 12465691966 12779953108 13424591348 13763026424 16712246372 20531727944 20711480426 22364917939 24085296242 24931383932 25559906216 26849182696 29246431151 33424492744 41422960852 43629921881 44729835878 48170592484 49862767864 54314800709 58492862302 82845921704 87259843762 89459671756 96341184968 108629601418 116985724604 156554425573 174519687524 178919343512 204725018057 217259202836 233971449208 313108851146 349039375048 380203604963 409450036114 434518405672 626217702292 760407209926 818900072228 1252435404584 1520814419852 1637800144456 2661425234741 3041628839704 5322850469482 10645700938964 21291401877928
• Sum of all divisors σ(n): 54045853030260
• Sum of proper divisors (its aliquot sum) s(n): 32754451152332
• 21291401877928 is an abundant number, because the sum of its proper divisors (32754451152332) is greater than itself. Its abundance is 11463049274404

Bases of 21291401877928

• Binary: 100110101110101001010011100100001100110101000₂
• Hexadecimal: 0x135D4A7219A8
• Base-36: 7JP4UY7QG

Squares and roots of 21291401877928

• 21291401877928 squared (21291401877928²) is 453323793927435965013573184
• 21291401877928 cubed (21291401877928³) is 9651899077336055788051958995827062282752
• The square root of 21291401877928 is 4614260.7076245703
• The cube root of 21291401877928 is 27716.2680261343

Scales and comparisons

• 21,291,401,877,928 seconds is equal to 677,000 years, 37 weeks, 3 days, 11 hours, 25 minutes, 28 seconds.
• To count from 1 to 21,291,401,877,928 would take you about one million, six hundred ninety-two thousand, five hundred 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 21291401877928 cubic inches would be around 2309.7 feet tall.

Recreational maths with 21291401877928

• 21291401877928 backwards is 82977810419212
• 21291401877928 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21291401877928's digits is 61
• More coming soon!