21997815000

Names of 21997815000

• Cardinal: 21997815000 can be written as Twenty-one billion, nine hundred ninety-seven million, eight hundred fifteen thousand.

Scientific notation

• Scientific notation: 2.1997815 × 10¹⁰

Factors of 21997815000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 190

Divisors of 21997815000

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 49 50 56 60 70 75 84 98 100 105 120 125 140 147 150 168 173 175 196 200 210 245 250 280 294 300 346 350 375 392 420 490 500 519 525 588 600 625 692 700 735 750 840 865 875 980 1000 1038 1050 1176 1211 1225 1250 1384 1400 1470 1500 1730 1750 1875 1960 2076 2100 2422 2450 2500 2595 2625 2940 3000 3460 3500 3633 3675 3750 4152 4200 4325 4375 4844 4900 5000 5190 5250 5880 6055 6125 6920 7000 7266 7350 7500 8477 8650 8750 9688 9800 10380 10500 12110 12250 12975 13125 14532 14700 15000 16954 17300 17500 18165 18375 20760 21000 21625 24220 24500 25431 25950 26250 29064 29400 29929 30275 30625 33908 34600 35000 36330 36750 42385 43250 48440 49000 50862 51900 52500 59858 60550 61250 64875 67816 72660 73500 84770 86500 89787 90825 91875 101724 103800 105000 108125 119716 121100 122500 127155 129750 145320 147000 149645 151375 169540 173000 179574 181650 183750 203448 209503 211925 216250 239432 242200 245000 254310 259500 299290 302750 324375 339080 359148 363300 367500 419006 423850 432500 448935 454125 508620 519000 598580 605500 628509 635775 648750 718296 726600 735000 748225 756875 838012 847700 865000 897870 908250 1017240 1047515 1059625 1197160 1211000 1257018 1271550 1297500 1466521 1496450 1513750 1676024 1695400 1795740 1816500 2095030 2119250 2244675 2270625 2514036 2543100 2595000 2933042 2992900 3027500 3142545 3178875 3591480 3633000 3741125 4190060 4238500 4399563 4489350 4541250 5028072 5086200 5237575 5298125 5866084 5985800 6055000 6285090 6357750 7332605 7482250 8380120 8477000 8799126 8978700 9082500 10475150 10596250 11223375 11732168 12570180 12715500 14665210 14964500 15712725 15894375 17598252 17957400 18165000 18705625 20950300 21192500 21997815 22446750 25140360 25431000 26187875 29330420 29929000 31425450 31788750 35196504 36663025 37411250 41900600 42385000 43995630 44893500 52375750 56116875 58660840 62850900 63577500 73326050 74822500 78563625 87991260 89787000 104751500 109989075 112233750 125701800 127155000 130939375 146652100 149645000 157127250 175982520 183315125 209503000 219978150 224467500 261878750 293304200 314254500 366630250 392818125 439956300 448935000 523757500 549945375 628509000 733260500 785636250 879912600 916575625 1047515000 1099890750 1466521000 1571272500 1833151250 2199781500 2749726875 3142545000 3666302500 4399563000 5499453750 7332605000 10998907500 21997815000
• Sum of all divisors σ(n): 80405715060
• Sum of proper divisors (its aliquot sum) s(n): 58407900060
• 21997815000 is an abundant number, because the sum of its proper divisors (58407900060) is greater than itself. Its abundance is 36410085060

Bases of 21997815000

• Binary: 10100011111001011000000010011011000₂
• Hexadecimal: 0x51F2C04D8
• Base-36: A3SXIOO

Squares and roots of 21997815000

• 21997815000 squared (21997815000²) is 483903864774225000000
• 21997815000 cubed (21997815000³) is 10644827695088418318375000000000
• The square root of 21997815000 is 148316.6039255215
• The cube root of 21997815000 is 2801.9465631001

Scales and comparisons

• 21,997,815,000 seconds is equal to 699 years, 24 weeks, 8 hours, 10 minutes.
• To count from 1 to 21,997,815,000 would take you about one thousand, three hundred ninety-eight 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 21997815000 cubic inches would be around 233.5 feet tall.

Recreational maths with 21997815000

• 21997815000 backwards is 00051879912
• 21997815000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21997815000's digits is 42
• More coming soon!