21079568790

Names of 21079568790

• Cardinal: 21079568790 can be written as Twenty-one billion, seventy-nine million, five hundred sixty-eight thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 2.107956879 × 10¹⁰

Factors of 21079568790

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2880

Divisors of 21079568790

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 31 35 42 43 45 54 62 63 70 81 86 90 93 105 126 129 135 155 162 186 189 210 215 217 258 270 279 301 310 315 378 387 405 430 434 465 558 567 602 630 645 651 774 810 837 903 930 945 1085 1134 1161 1290 1302 1333 1395 1505 1674 1806 1890 1935 1953 2170 2322 2511 2666 2709 2789 2790 2835 3010 3255 3483 3870 3906 3999 4185 4515 5022 5418 5578 5670 5805 5859 6510 6665 6966 7998 8127 8367 8370 9030 9331 9765 11610 11718 11997 12555 13330 13545 13945 16254 16734 17415 17577 18662 19523 19530 19995 23994 24381 25101 25110 27090 27890 27993 29295 34830 35154 35991 39046 39990 40635 41835 46655 48762 50202 55986 58569 58590 59985 71982 75303 81270 83670 83979 86459 87885 93310 97615 107973 117138 119927 119970 121905 125505 139965 150606 167958 172918 175707 175770 179955 195230 215946 225909 239854 243810 251010 251937 259377 279930 292845 351414 359781 359910 376515 419895 432295 451818 503874 518754 527121 539865 585690 599635 605213 719562 753030 755811 778131 839489 839790 864590 878535 1054242 1079343 1079730 1129545 1199270 1210426 1259685 1296885 1511622 1556262 1581363 1678978 1757070 1798905 1815639 2158686 2259090 2334393 2518467 2519370 2593770 2635605 3026065 3162726 3238029 3597810 3631278 3717737 3779055 3890655 4197445 4668786 5036934 5271210 5396715 5446917 6052130 6476058 7003179 7435474 7555401 7558110 7781310 7906815 8394890 9078195 9714087 10793430 10893834 11153211 11671965 12592335 14006358 15110802 15813630 16190145 16340751 18156390 18588685 19428174 22306422 22666203 23343930 25184670 26024159 27234585 32380290 32681502 33459633 35015895 37177370 37777005 45332406 48570435 49022253 52048318 54469170 55766055 66919266 67998609 70031790 75554010 78072477 81703755 97140870 98044506 100378899 111532110 113331015 130120795 135997218 156144954 163407510 167298165 200757798 226662030 234217431 245111265 260241590 301136697 334596330 339993045 390362385 468434862 490222530 501894495 602273394 679986090 702652293 780724770 1003788990 1171087155 1405304586 1505683485 2107956879 2342174310 3011366970 3513261465 4215913758 7026522930 10539784395 21079568790
• Sum of all divisors σ(n): 68447047680
• Sum of proper divisors (its aliquot sum) s(n): 47367478890
• 21079568790 is an abundant number, because the sum of its proper divisors (47367478890) is greater than itself. Its abundance is 26287910100

Bases of 21079568790

• Binary: 10011101000011100001011000110010110₂
• Hexadecimal: 0x4E870B196
• Base-36: 9OM8BDI

Squares and roots of 21079568790

• 21079568790 squared (21079568790²) is 444348220372342064100
• 21079568790 cubed (21079568790³) is 9366668878052863953606539439000
• The square root of 21079568790 is 145188.0463054725
• The cube root of 21079568790 is 2762.4042967331

Scales and comparisons

• 21,079,568,790 seconds is equal to 670 years, 13 weeks, 5 days, 11 hours, 46 minutes, 30 seconds.
• To count from 1 to 21,079,568,790 would take you about one thousand, three hundred forty 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 21079568790 cubic inches would be around 230.2 feet tall.

Recreational maths with 21079568790

• 21079568790 backwards is 09786597012
• 21079568790 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21079568790's digits is 54
• More coming soon!