21198720000

Names of 21198720000

• Cardinal: 21198720000 can be written as Twenty-one billion, one hundred ninety-eight million, seven hundred twenty thousand.

Scientific notation

• Scientific notation: 2.119872 × 10¹⁰

Factors of 21198720000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 252

Divisors of 21198720000

• Number of divisors d(n): 440
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 61 64 75 80 96 100 120 122 125 128 150 160 181 183 192 200 240 244 250 256 300 305 320 362 366 375 384 400 480 488 500 512 543 600 610 625 640 724 732 750 768 800 905 915 960 976 1000 1024 1086 1200 1220 1250 1280 1448 1464 1500 1525 1536 1600 1810 1830 1875 1920 1952 2000 2172 2400 2440 2500 2560 2715 2896 2928 3000 3050 3072 3200 3620 3660 3750 3840 3904 4000 4344 4525 4575 4800 4880 5000 5120 5430 5792 5856 6000 6100 6400 7240 7320 7500 7625 7680 7808 8000 8688 9050 9150 9600 9760 10000 10860 11041 11584 11712 12000 12200 12800 13575 14480 14640 15000 15250 15360 15616 16000 17376 18100 18300 19200 19520 20000 21720 22082 22625 22875 23168 23424 24000 24400 25600 27150 28960 29280 30000 30500 31232 32000 33123 34752 36200 36600 38125 38400 39040 40000 43440 44164 45250 45750 46336 46848 48000 48800 54300 55205 57920 58560 60000 61000 62464 64000 66246 67875 69504 72400 73200 76250 76800 78080 80000 86880 88328 90500 91500 92672 93696 96000 97600 108600 110410 113125 114375 115840 117120 120000 122000 128000 132492 135750 139008 144800 146400 152500 156160 160000 165615 173760 176656 181000 183000 185344 187392 192000 195200 217200 220820 226250 228750 231680 234240 240000 244000 264984 271500 276025 278016 289600 292800 305000 312320 320000 331230 339375 347520 353312 362000 366000 384000 390400 434400 441640 452500 457500 463360 468480 480000 488000 529968 543000 552050 556032 579200 585600 610000 640000 662460 678750 695040 706624 724000 732000 780800 828075 868800 883280 905000 915000 926720 936960 960000 976000 1059936 1086000 1104100 1158400 1171200 1220000 1324920 1357500 1380125 1390080 1413248 1448000 1464000 1561600 1656150 1737600 1766560 1810000 1830000 1920000 1952000 2119872 2172000 2208200 2316800 2342400 2440000 2649840 2715000 2760250 2780160 2826496 2896000 2928000 3312300 3475200 3533120 3620000 3660000 3904000 4140375 4239744 4344000 4416400 4633600 4684800 4880000 5299680 5430000 5520500 5652992 5792000 5856000 6624600 6900625 6950400 7066240 7240000 7320000 7808000 8280750 8479488 8688000 8832800 9760000 10599360 10860000 11041000 11305984 11584000 11712000 13249200 13801250 13900800 14132480 14480000 14640000 16561500 16958976 17376000 17665600 19520000 20701875 21198720 21720000 22082000 23168000 23424000 26498400 27602500 28264960 28960000 29280000 33123000 33917952 34752000 35331200 39040000 41403750 42397440 43440000 44164000 52996800 55205000 56529920 57920000 58560000 66246000 69504000 70662400 82807500 84794880 86880000 88328000 105993600 110410000 115840000 117120000 132492000 141324800 165615000 169589760 173760000 176656000 211987200 220820000 264984000 282649600 331230000 347520000 353312000 423974400 441640000 529968000 662460000 706624000 847948800 883280000 1059936000 1324920000 1413248000 1766560000 2119872000 2649840000 3533120000 4239744000 5299680000 7066240000 10599360000 21198720000
• Sum of all divisors σ(n): 72159239152
• Sum of proper divisors (its aliquot sum) s(n): 50960519152
• 21198720000 is an abundant number, because the sum of its proper divisors (50960519152) is greater than itself. Its abundance is 29761799152

Bases of 21198720000

• Binary: 10011101111100010101100110000000000₂
• Hexadecimal: 0x4EF8ACC00
• Base-36: 9QL651C

Squares and roots of 21198720000

• 21198720000 squared (21198720000²) is 449385729638400000000
• 21198720000 cubed (21198720000³) is 9526402254600142848000000000000
• The square root of 21198720000 is 145597.8021812143
• The cube root of 21198720000 is 2767.5993049349

Scales and comparisons

• 21,198,720,000 seconds is equal to 674 years, 2 weeks, 5 days, 13 hours, 20 minutes.
• To count from 1 to 21,198,720,000 would take you about one thousand, three hundred forty-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 21198720000 cubic inches would be around 230.6 feet tall.

Recreational maths with 21198720000

• 21198720000 backwards is 00002789112
• 21198720000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21198720000's digits is 30
• More coming soon!