21010201680

Names of 21010201680

• Cardinal: 21010201680 can be written as Twenty-one billion, ten million, two hundred one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.101020168 × 10¹⁰

Factors of 21010201680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 185

Divisors of 21010201680

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 79 80 83 104 120 130 156 158 166 169 195 208 237 240 249 260 312 316 332 338 390 395 415 474 498 507 520 624 632 664 676 780 790 830 845 948 996 1014 1027 1040 1079 1185 1245 1264 1328 1352 1560 1580 1660 1690 1896 1992 2028 2054 2158 2370 2490 2535 2704 3081 3120 3160 3237 3320 3380 3792 3984 4056 4108 4316 4740 4980 5070 5135 5395 6162 6241 6320 6474 6557 6640 6760 8112 8216 8632 9480 9960 10140 10270 10790 12324 12482 12948 13114 13351 13520 14027 15405 16185 16432 17264 18723 18960 19671 19920 20280 20540 21580 24648 24964 25896 26228 26702 28054 30810 31205 32370 32785 37446 39342 40053 40560 41080 42081 43160 49296 49928 51792 52456 53404 56108 61620 62410 64740 65570 66755 70135 74892 78684 80106 81133 82160 84162 85241 86320 93615 98355 99856 104912 106808 112216 123240 124820 129480 131140 133510 140270 149784 157368 160212 162266 168324 170482 187230 196710 200265 210405 213616 224432 243399 246480 249640 255723 258960 262280 267020 280540 299568 314736 320424 324532 336648 340964 374460 393420 400530 405665 420810 426205 486798 499280 511446 518003 524560 534040 561080 640848 649064 673296 681928 748920 786840 801060 811330 841620 852410 973596 1022892 1036006 1054729 1068080 1108133 1122160 1216995 1278615 1298128 1363856 1497840 1554009 1573680 1602120 1622660 1683240 1704820 1947192 2045784 2072012 2109458 2216266 2433990 2557230 2590015 3108018 3164187 3204240 3245320 3324399 3366480 3409640 3894384 4091568 4144024 4218916 4432532 4867980 5114460 5180030 5273645 5540665 6216036 6328374 6490640 6648798 6734039 6819280 7770045 8288048 8437832 8865064 9735960 10228920 10360060 10547290 11081330 12432072 12656748 13297596 13468078 15540090 15820935 16621995 16875664 17730128 19471920 20202117 20457840 20720120 21094580 22162660 24864144 25313496 26595192 26936156 31080180 31641870 33243990 33670195 40404234 41440240 42189160 44325320 50626992 53190384 53872312 62160360 63283740 66487980 67340390 80808468 84378320 87542507 88650640 101010585 107744624 124320720 126567480 132975960 134680780 161616936 175085014 202021170 253134960 262627521 265951920 269361560 323233872 350170028 404042340 437712535 525255042 538723120 700340056 808084680 875425070 1050510084 1313137605 1400680112 1616169360 1750850140 2101020168 2626275210 3501700280 4202040336 5252550420 7003400560 10505100840 21010201680
• Sum of all divisors σ(n): 72291810528
• Sum of proper divisors (its aliquot sum) s(n): 51281608848
• 21010201680 is an abundant number, because the sum of its proper divisors (51281608848) is greater than itself. Its abundance is 30271407168

Bases of 21010201680

• Binary: 10011100100010011100011110001010000₂
• Hexadecimal: 0x4E44E3C50
• Base-36: 9NGXJDC

Squares and roots of 21010201680

• 21010201680 squared (21010201680²) is 441428574634274822400
• 21010201680 cubed (21010201680³) is 9274503380381046259170181632000
• The square root of 21010201680 is 144948.9623281243
• The cube root of 21010201680 is 2759.3708605899

Scales and comparisons

• 21,010,201,680 seconds is equal to 668 years, 3 weeks, 15 hours, 8 minutes.
• To count from 1 to 21,010,201,680 would take you about one thousand, three hundred thirty-six 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 21010201680 cubic inches would be around 229.9 feet tall.

Recreational maths with 21010201680

• 21010201680 backwards is 08610201012
• The number of decimal digits it has is: 11
• The sum of 21010201680's digits is 21
• More coming soon!