21230472900

Names of 21230472900

• Cardinal: 21230472900 can be written as Twenty-one billion, two hundred thirty million, four hundred seventy-two thousand, nine hundred.

Scientific notation

• Scientific notation: 2.12304729 × 10¹⁰

Factors of 21230472900

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 560

Divisors of 21230472900

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 13 14 15 20 21 25 26 28 30 35 39 42 50 52 60 65 70 75 78 84 91 100 105 130 140 150 156 163 169 175 182 195 210 260 273 300 325 326 338 350 364 367 390 420 455 489 507 525 546 650 652 676 700 734 780 815 845 910 975 978 1014 1050 1092 1101 1141 1183 1300 1365 1468 1630 1690 1820 1835 1950 1956 2028 2100 2119 2202 2275 2282 2366 2445 2535 2569 2730 3260 3380 3423 3549 3670 3900 4075 4225 4238 4404 4550 4564 4732 4771 4890 5070 5138 5460 5505 5705 5915 6357 6825 6846 7098 7340 7707 8150 8450 8476 9100 9175 9542 9780 10140 10276 10595 11010 11410 11830 12225 12675 12714 12845 13650 13692 14196 14313 14833 15414 16300 16900 17115 17745 18350 19084 21190 22020 22820 23660 23855 24450 25350 25428 25690 27300 27525 27547 28525 28626 29575 29666 30828 31785 33397 34230 35490 36700 38535 42380 44499 47710 48900 50700 51380 52975 55050 55094 57050 57252 59150 59332 59821 62023 63570 64225 66794 68460 70980 71565 74165 77070 82641 85575 88725 88998 95420 100191 105950 110100 110188 114100 118300 119275 119642 124046 127140 128450 133588 137735 143130 148330 154140 158925 165282 166985 171150 177450 177996 179463 186069 192675 192829 200382 211900 222495 238550 239284 248092 256900 275470 286260 296660 299105 310115 317850 330564 333970 342300 354900 357825 358926 370825 372138 385350 385658 400764 413205 418747 434161 444990 477100 500955 550940 578487 598210 620230 635700 667940 688675 715650 717852 741650 744276 770700 771316 777673 826410 834925 837494 868322 889980 897315 930345 964145 1001910 1112475 1156974 1196420 1240460 1256241 1302483 1377350 1431300 1483300 1495525 1550575 1555346 1652820 1669850 1674988 1736644 1794630 1860690 1928290 2003820 2066025 2093735 2170805 2224950 2313948 2333019 2504775 2512482 2604966 2754700 2892435 2991050 3101150 3110692 3339700 3589260 3721380 3856580 3888365 4132050 4187470 4341610 4449900 4486575 4651725 4666038 4820725 5009550 5024964 5209932 5443711 5784870 5982100 6202300 6281205 6512415 7776730 8264100 8374940 8683220 8973150 9303450 9332076 9641450 10019100 10109749 10468675 10854025 10887422 11569740 11665095 12562410 13024830 14462175 15553460 16331133 17946300 18606900 19282900 19441825 20219498 20937350 21708050 21774844 23330190 25124820 26049660 27218555 28924350 30329247 31406025 32562075 32662266 38883650 40438996 41874700 43416100 46660380 50548745 54437110 57848700 58325475 60658494 62812050 65124150 65324532 70768243 77767300 81655665 101097490 108874220 116650950 121316988 125624100 130248300 136092775 141536486 151646235 163311330 202194980 212304729 233301900 252743725 272185550 283072972 303292470 326622660 353841215 408278325 424609458 505487450 544371100 606584940 707682430 758231175 816556650 849218916 1010974900 1061523645 1415364860 1516462350 1633113300 1769206075 2123047290 3032924700 3538412150 4246094580 5307618225 7076824300 10615236450 21230472900
• Sum of all divisors σ(n): 76692424704
• Sum of proper divisors (its aliquot sum) s(n): 55461951804
• 21230472900 is an abundant number, because the sum of its proper divisors (55461951804) is greater than itself. Its abundance is 34231478904

Bases of 21230472900

• Binary: 10011110001011011110100111011000100₂
• Hexadecimal: 0x4F16F4EC4
• Base-36: 9R42PQC

Squares and roots of 21230472900

• 21230472900 squared (21230472900²) is 450732979557634410000
• 21230472900 cubed (21230472900³) is 9569274307634611329612489000000
• The square root of 21230472900 is 145706.8045768627
• The cube root of 21230472900 is 2768.9804490673

Scales and comparisons

• 21,230,472,900 seconds is equal to 675 years, 3 weeks, 2 days, 1 hour, 35 minutes.
• To count from 1 to 21,230,472,900 would take you about one thousand, three hundred fifty 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 21230472900 cubic inches would be around 230.7 feet tall.

Recreational maths with 21230472900

• 21230472900 backwards is 00927403212
• 21230472900 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21230472900's digits is 30
• More coming soon!