18121467456

Names of 18121467456

• Cardinal: 18121467456 can be written as Eighteen billion, one hundred twenty-one million, four hundred sixty-seven thousand, four hundred fifty-six.

Scientific notation

• Scientific notation: 1.8121467456 × 10¹⁰

Factors of 18121467456

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 155

Divisors of 18121467456

• Number of divisors d(n): 189
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 71 72 79 96 142 144 158 192 213 237 284 288 316 426 474 568 576 632 639 711 852 948 1136 1264 1278 1422 1704 1896 2272 2528 2556 2844 3408 3792 4544 5041 5056 5112 5609 5688 6241 6816 7584 10082 10224 11218 11376 12482 13632 15123 15168 16827 18723 20164 20448 22436 22752 24964 30246 33654 37446 40328 40896 44872 45369 45504 49928 50481 56169 60492 67308 74892 80656 89744 90738 99856 100962 112338 120984 134616 149784 161312 179488 181476 199712 201924 224676 241968 269232 299568 322624 358976 362952 398239 399424 403848 443111 449352 483936 538464 599136 725904 796478 807696 886222 898704 967872 1076928 1194717 1198272 1329333 1451808 1592956 1615392 1772444 1797408 2389434 2658666 2903616 3185912 3230784 3544888 3584151 3594816 3987999 4778868 5317332 6371824 7089776 7168302 7975998 9557736 10634664 12743648 14179552 14336604 15951996 19115472 21269328 25487296 28359104 28673208 31460881 31903992 38230944 42538656 57346416 62921762 63807984 76461888 85077312 94382643 114692832 125843524 127615968 188765286 229385664 251687048 255231936 283147929 377530572 503374096 566295858 755061144 1006748192 1132591716 1510122288 2013496384 2265183432 3020244576 4530366864 6040489152 9060733728 18121467456
• Sum of all divisors σ(n): 53359119723
• Sum of proper divisors (its aliquot sum) s(n): 35237652267
• 18121467456 is an abundant number, because the sum of its proper divisors (35237652267) is greater than itself. Its abundance is 17116184811

Bases of 18121467456

• Binary: 10000111000000111111010011001000000₂
• Hexadecimal: 0x4381FA640
• Base-36: 8BP1XS0

Squares and roots of 18121467456

• 18121467456 squared (18121467456²) is 328387582758867111936
• 18121467456 cubed (18121467456³) is 5950864893919317064376933154816
• 18121467456 is a perfect square number. Its square root is 134616
• The cube root of 18121467456 is 2626.6232720061

Scales and comparisons

• 18,121,467,456 seconds is equal to 576 years, 10 weeks, 5 days, 4 hours, 57 minutes, 36 seconds.
• To count from 1 to 18,121,467,456 would take you about one thousand, one hundred fifty-two 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 18121467456 cubic inches would be around 218.9 feet tall.

Recreational maths with 18121467456

• 18121467456 backwards is 65476412181
• The number of decimal digits it has is: 11
• The sum of 18121467456's digits is 45
• More coming soon!