18212679680

Names of 18212679680

• Cardinal: 18212679680 can be written as Eighteen billion, two hundred twelve million, six hundred seventy-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.821267968 × 10¹⁰

Factors of 18212679680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 1108

Divisors of 18212679680

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 67 80 104 128 130 134 160 208 256 260 268 320 335 416 512 520 536 640 670 832 871 1021 1024 1040 1072 1280 1340 1664 1742 2042 2048 2080 2144 2560 2680 3328 3484 4084 4096 4160 4288 4355 5105 5120 5360 6656 6968 8168 8320 8576 8710 10210 10240 10720 13273 13312 13936 16336 16640 17152 17420 20420 20480 21440 26546 26624 27872 32672 33280 34304 34840 40840 42880 53092 53248 55744 65344 66365 66560 68407 68608 69680 81680 85760 106184 111488 130688 132730 133120 136814 137216 139360 163360 171520 212368 222976 261376 265460 266240 273628 274432 278720 326720 342035 343040 424736 445952 522752 530920 547256 557440 653440 684070 686080 849472 889291 891904 1045504 1061840 1094512 1114880 1306880 1368140 1372160 1698944 1778582 1783808 2091008 2123680 2189024 2229760 2613760 2736280 3397888 3557164 3567616 4182016 4247360 4378048 4446455 4459520 5227520 5472560 6795776 7114328 8494720 8756096 8892910 8919040 10455040 10945120 13591552 14228656 16989440 17512192 17785820 17838080 20910080 21890240 27183104 28457312 33978880 35024384 35571640 43780480 54366208 56914624 67957760 70048768 71143280 87560960 113829248 135915520 140097536 142286560 175121920 227658496 271831040 280195072 284573120 350243840 455316992 569146240 700487680 910633984 1138292480 1400975360 1821267968 2276584960 3642535936 4553169920 9106339840 18212679680
• Sum of all divisors σ(n): 47816305824
• Sum of proper divisors (its aliquot sum) s(n): 29603626144
• 18212679680 is an abundant number, because the sum of its proper divisors (29603626144) is greater than itself. Its abundance is 11390946464

Bases of 18212679680

• Binary: 10000111101100011110111000000000000₂
• Hexadecimal: 0x43D8F7000
• Base-36: 8D7CXKW

Squares and roots of 18212679680

• 18212679680 squared (18212679680²) is 331701701126284902400
• 18212679680 cubed (18212679680³) is 6041176831924122155831263232000
• The square root of 18212679680 is 134954.3614708321
• The cube root of 18212679680 is 2631.0228293297

Scales and comparisons

• 18,212,679,680 seconds is equal to 579 years, 5 weeks, 3 days, 21 hours, 41 minutes, 20 seconds.
• To count from 1 to 18,212,679,680 would take you about one thousand, one hundred fifty-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 18212679680 cubic inches would be around 219.3 feet tall.

Recreational maths with 18212679680

• 18212679680 backwards is 08697621281
• The number of decimal digits it has is: 11
• The sum of 18212679680's digits is 50
• More coming soon!