21209309184

Names of 21209309184

• Cardinal: 21209309184 can be written as Twenty-one billion, two hundred nine million, three hundred nine thousand, one hundred eighty-four.

Scientific notation

• Scientific notation: 2.1209309184 × 10¹⁰

Factors of 21209309184

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 181

Divisors of 21209309184

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 31 32 41 42 48 56 62 64 82 84 93 96 97 112 123 124 128 164 168 186 192 194 217 224 246 248 256 287 291 328 336 372 384 388 434 448 492 496 512 574 582 651 656 672 679 744 768 776 861 868 896 984 992 1024 1148 1164 1271 1302 1312 1344 1358 1488 1536 1552 1722 1736 1792 1968 1984 2037 2048 2296 2328 2542 2604 2624 2688 2716 2976 3007 3072 3104 3444 3472 3584 3813 3936 3968 3977 4074 4096 4592 4656 5084 5208 5248 5376 5432 5952 6014 6144 6208 6888 6944 7168 7626 7872 7936 7954 8148 8192 8897 9021 9184 9312 10168 10416 10496 10752 10864 11904 11931 12028 12288 12416 13776 13888 14336 15252 15744 15872 15908 16296 17794 18042 18368 18624 20336 20832 20992 21049 21504 21728 23808 23862 24056 24576 24832 26691 27552 27776 27839 28672 30504 31488 31744 31816 32592 35588 36084 36736 37248 40672 41664 41984 42098 43008 43456 47616 47724 48112 49664 53382 55104 55552 55678 57344 61008 62976 63147 63488 63632 65184 71176 72168 73472 74496 81344 83328 83517 83968 84196 86016 86912 95232 95448 96224 99328 106764 110208 111104 111356 122016 123287 125952 126294 126976 127264 130368 142352 144336 146944 148992 162688 166656 167034 167936 168392 172032 173824 190464 190896 192448 198656 213528 220416 222208 222712 244032 246574 251904 252588 253952 254528 260736 284704 288672 293888 297984 325376 333312 334068 335872 336784 347648 369861 380928 381792 384896 397312 427056 440832 444416 445424 488064 493148 503808 505176 509056 521472 569408 577344 587776 595968 650752 666624 668136 673568 695296 739722 761856 763584 769792 794624 854112 863009 881664 888832 890848 976128 986296 1007616 1010352 1018112 1042944 1138816 1154688 1175552 1191936 1301504 1333248 1336272 1347136 1390592 1479444 1527168 1539584 1708224 1726018 1763328 1777664 1781696 1952256 1972592 2020704 2036224 2085888 2277632 2309376 2351104 2383872 2589027 2603008 2666496 2672544 2694272 2781184 2958888 3054336 3079168 3416448 3452036 3526656 3563392 3904512 3945184 4041408 4072448 4171776 4555264 4618752 5178054 5206016 5332992 5345088 5388544 5562368 5917776 6108672 6158336 6832896 6904072 7053312 7126784 7809024 7890368 8082816 8144896 8343552 9110528 9237504 10356108 10412032 10690176 10777088 11835552 12217344 12316672 13665792 13808144 14253568 15618048 15780736 16165632 16289792 16687104 18221056 18475008 20712216 21380352 21554176 23671104 24434688 24633344 27331584 27616288 28507136 31236096 31561472 32331264 32579584 36442112 36950016 41424432 42760704 43108352 47342208 48869376 54663168 55232576 57014272 63122944 64662528 72884224 73900032 82848864 85521408 86216704 94684416 97738752 109326336 110465152 114028544 126245888 129325056 165697728 171042816 172433408 189368832 218652672 220930304 228057088 252491776 258650112 331395456 342085632 378737664 441860608 504983552 517300224 662790912 684171264 757475328 883721216 1009967104 1325581824 1514950656 1767442432 2651163648 3029901312 3534884864 5302327296 7069769728 10604654592 21209309184
• Sum of all divisors σ(n): 69050806272
• Sum of proper divisors (its aliquot sum) s(n): 47841497088
• 21209309184 is an abundant number, because the sum of its proper divisors (47841497088) is greater than itself. Its abundance is 26632187904

Bases of 21209309184

• Binary: 10011110000001011000110000000000000₂
• Hexadecimal: 0x4F02C6000
• Base-36: 9QRH3PC

Squares and roots of 21209309184

• 21209309184 squared (21209309184²) is 449834796062506745856
• 21209309184 cubed (21209309184³) is 9540685271411291362945614741504
• The square root of 21209309184 is 145634.1621461119
• The cube root of 21209309184 is 2768.0600519343

Scales and comparisons

• 21,209,309,184 seconds is equal to 674 years, 20 weeks, 2 days, 2 hours, 46 minutes, 24 seconds.
• To count from 1 to 21,209,309,184 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 21209309184 cubic inches would be around 230.7 feet tall.

Recreational maths with 21209309184

• 21209309184 backwards is 48190390212
• The number of decimal digits it has is: 11
• The sum of 21209309184's digits is 39
• More coming soon!