21726649728

Names of 21726649728

• Cardinal: 21726649728 can be written as Twenty-one billion, seven hundred twenty-six million, six hundred forty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1726649728 × 10¹⁰

Factors of 21726649728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 300

Divisors of 21726649728

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 131 144 157 168 192 224 252 262 288 314 336 384 393 448 471 504 524 576 628 672 786 896 917 942 1008 1048 1099 1152 1179 1256 1344 1413 1572 1834 1884 2016 2096 2198 2358 2512 2688 2751 2826 3144 3297 3668 3768 4032 4192 4396 4716 5024 5502 5652 6288 6594 7336 7536 8064 8253 8384 8792 9432 9891 10048 11004 11304 12576 13188 14672 15072 16506 16768 17161 17584 18864 19782 20096 20567 22008 22608 25152 26376 29344 30144 33012 34322 35168 37728 39564 41134 44016 45216 50304 51483 52752 58688 60288 61701 66024 68644 70336 75456 79128 82268 88032 90432 102966 105504 117376 120127 123402 132048 137288 140672 143969 150912 154449 158256 164536 176064 180864 185103 205932 211008 240254 246804 264096 274576 287938 308898 316512 329072 352128 360381 370206 411864 422016 431907 480508 493608 528192 549152 575876 617796 633024 658144 720762 740412 823728 863814 961016 987216 1056384 1081143 1098304 1151752 1235592 1266048 1295721 1316288 1441524 1480824 1647456 1727628 1922032 1974432 2162286 2196608 2303504 2471184 2591442 2632576 2694277 2883048 2961648 3294912 3455256 3844064 3948864 4324572 4607008 4942368 5182884 5388554 5766096 5923296 6589824 6910512 7688128 7897728 8082831 8649144 9214016 9884736 10365768 10777108 11532192 11846592 13821024 15376256 16165662 17298288 18428032 18859939 19769472 20731536 21554216 23064384 23693184 24248493 27642048 32331324 34596576 37719878 41463072 43108432 46128768 48496986 55284096 56579817 64662648 69193152 75439756 82926144 86216864 96993972 113159634 129325296 138386304 150879512 165852288 169739451 172433728 193987944 226319268 258650592 301759024 339478902 344867456 387975888 452638536 517301184 603518048 678957804 775951776 905277072 1034602368 1207036096 1357915608 1551903552 1810554144 2414072192 2715831216 3103807104 3621108288 5431662432 7242216576 10863324864 21726649728
• Sum of all divisors σ(n): 72460436880
• Sum of proper divisors (its aliquot sum) s(n): 50733787152
• 21726649728 is an abundant number, because the sum of its proper divisors (50733787152) is greater than itself. Its abundance is 29007137424

Bases of 21726649728

• Binary: 10100001111000000100101110110000000₂
• Hexadecimal: 0x50F025D80
• Base-36: 9ZBHI80

Squares and roots of 21726649728

• 21726649728 squared (21726649728²) is 472047308403202473984
• 21726649728 cubed (21726649728³) is 10256006524721571145713400676352
• The square root of 21726649728 is 147399.6259425377
• The cube root of 21726649728 is 2790.3858070551

Scales and comparisons

• 21,726,649,728 seconds is equal to 690 years, 43 weeks, 4 days, 20 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,726,649,728 would take you about one thousand, three hundred eighty-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 21726649728 cubic inches would be around 232.5 feet tall.

Recreational maths with 21726649728

• 21726649728 backwards is 82794662712
• The number of decimal digits it has is: 11
• The sum of 21726649728's digits is 54
• More coming soon!