21328461710640

Names of 21328461710640

• Cardinal: 21328461710640 can be written as Twenty-one trillion, three hundred twenty-eight billion, four hundred sixty-one million, seven hundred ten thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.132846171064 × 10¹³

Factors of 21328461710640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1410612564

Divisors of 21328461710640

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 105 108 112 120 126 135 140 144 168 180 189 210 216 240 252 270 280 315 336 360 378 420 432 504 540 560 630 720 756 840 945 1008 1080 1260 1512 1680 1890 2160 2520 3024 3780 5040 7560 15120 1410612547 2821225094 4231837641 5642450188 7053062735 8463675282 9874287829 11284900376 12695512923 14106125470 16927350564 19748575658 21159188205 22569800752 25391025846 28212250940 29622863487 33854701128 38086538769 39497151316 42318376410 49371439145 50782051692 56424501880 59245726974 63477564615 67709402256 76173077538 78994302632 84636752820 88868590461 98742878290 101564103384 112849003760 118491453948 126955129230 148114317435 152346155076 157988605264 169273505640 177737180922 190432693845 197485756580 203128206768 236982907896 253910258460 266605771383 296228634870 304692310152 338547011280 355474361844 380865387690 394971513160 444342952305 473965815792 507820516920 533211542766 592457269740 609384620304 710948723688 761730775380 789943026320 888685904610 1015641033840 1066423085532 1184914539480 1333028856915 1421897447376 1523461550760 1777371809220 2132846171064 2369829078960 2666057713830 3046923101520 3554743618440 4265692342128 5332115427660 7109487236880 10664230855320 21328461710640
• Sum of all divisors σ(n): 83959658856960
• Sum of proper divisors (its aliquot sum) s(n): 62631197146320
• 21328461710640 is an abundant number, because the sum of its proper divisors (62631197146320) is greater than itself. Its abundance is 41302735435680

Bases of 21328461710640

• Binary: 100110110010111101011011000100100010100110000₂
• Hexadecimal: 0x1365EB624530
• Base-36: 7K65RF1O0

Squares and roots of 21328461710640

• 21328461710640 squared (21328461710640²) is 454903278942236555089209600
• 21328461710640 cubed (21328461710640³) is 9702387166964079765505543983021510144000
• The square root of 21328461710640 is 4618274.7547801873
• The cube root of 21328461710640 is 27732.3396917339

Scales and comparisons

• 21,328,461,710,640 seconds is equal to 678,179 years, 5 weeks, 4 days, 17 hours, 24 minutes.
• To count from 1 to 21,328,461,710,640 would take you about one million, six hundred ninety-five thousand, four hundred forty-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 21328461710640 cubic inches would be around 2311 feet tall.

Recreational maths with 21328461710640

• 21328461710640 backwards is 04601716482312
• 21328461710640 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21328461710640's digits is 45
• More coming soon!