168721450992

Names of 168721450992

• Cardinal: 168721450992 can be written as One hundred sixty-eight billion, seven hundred twenty-one million, four hundred fifty thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.68721450992 × 10¹¹

Factors of 168721450992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1352

Divisors of 168721450992

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 36 37 38 48 57 72 74 76 111 114 144 148 152 171 222 228 296 304 333 342 444 456 592 666 684 703 888 912 1291 1332 1368 1406 1776 2109 2582 2664 2736 2812 3873 4218 5164 5328 5624 6327 7746 8436 10328 11248 11619 12654 15492 16872 20656 23238 24529 25308 30984 33744 46476 47767 49058 50616 61968 73587 92952 95534 98116 101232 143301 147174 185904 191068 196232 220761 286602 294348 382136 392464 429903 441522 573204 588696 764272 859806 883044 907573 1146408 1177392 1666681 1719612 1766088 1815146 2292816 2722719 3333362 3439224 3532176 3630292 5000043 5445438 6666724 6878448 7260584 8168157 10000086 10890876 13333448 14521168 15000129 16336314 20000172 21781752 26666896 30000258 31666939 32672628 40000344 43563504 60000516 61667197 63333878 65345256 80000688 95000817 120001032 123334394 126667756 130690512 185001591 190001634 240002064 246668788 253335512 285002451 370003182 380003268 493337576 506671024 555004773 570004902 740006364 760006536 986675152 1110009546 1140009804 1171676743 1480012728 1520013072 2220019092 2280019608 2343353486 2960025456 3515030229 4440038184 4560039216 4686706972 7030060458 8880076368 9373413944 10545090687 14060120916 18746827888 21090181374 28120241832 42180362748 56240483664 84360725496 168721450992
• Sum of all divisors σ(n): 510866770440
• Sum of proper divisors (its aliquot sum) s(n): 342145319448
• 168721450992 is an abundant number, because the sum of its proper divisors (342145319448) is greater than itself. Its abundance is 173423868456

Bases of 168721450992

• Binary: 10011101001000100101010000011111110000₂
• Hexadecimal: 0x27489507F0
• Base-36: 25ICE8S0

Squares and roots of 168721450992

• 168721450992 squared (168721450992²) is 28466928024845857784064
• 168721450992 cubed (168721450992³) is 4802981401636821752468155894591488
• The square root of 168721450992 is 410757.1679131115
• The cube root of 168721450992 is 5525.7355994377

Scales and comparisons

• 168,721,450,992 seconds is equal to 5,364 years, 42 weeks, 4 days, 13 hours, 43 minutes, 12 seconds.
• To count from 1 to 168,721,450,992 would take you about ten thousand, seven hundred twenty-nine 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 168721450992 cubic inches would be around 460.5 feet tall.

Recreational maths with 168721450992

• 168721450992 backwards is 299054127861
• The number of decimal digits it has is: 12
• The sum of 168721450992's digits is 54
• More coming soon!