40680640

Names of 40680640

• Cardinal: 40680640 can be written as Forty million, six hundred eighty thousand, six hundred forty.

Scientific notation

• Scientific notation: 4.068064 × 10⁷

Factors of 40680640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 165

Divisors of 40680640

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 32 35 40 44 52 55 56 64 65 70 77 80 88 91 104 110 112 127 130 140 143 154 160 176 182 208 220 224 254 260 280 286 308 320 352 364 385 416 440 448 455 508 520 560 572 616 635 704 715 728 770 832 880 889 910 1001 1016 1040 1120 1144 1232 1270 1397 1430 1456 1540 1651 1760 1778 1820 2002 2032 2080 2240 2288 2464 2540 2794 2860 2912 3080 3302 3520 3556 3640 4004 4064 4160 4445 4576 4928 5005 5080 5588 5720 5824 6160 6604 6985 7112 7280 8008 8128 8255 8890 9152 9779 10010 10160 11176 11440 11557 12320 13208 13970 14224 14560 16016 16510 17780 18161 19558 20020 20320 22352 22880 23114 24640 26416 27940 28448 29120 32032 33020 35560 36322 39116 40040 40640 44704 45760 46228 48895 52832 55880 56896 57785 64064 66040 71120 72644 78232 80080 89408 90805 92456 97790 105664 111760 115570 127127 132080 142240 145288 156464 160160 181610 184912 195580 223520 231140 254254 264160 284480 290576 312928 320320 363220 369824 391160 447040 462280 508508 528320 581152 625856 635635 726440 739648 782320 924560 1017016 1162304 1271270 1452880 1564640 1849120 2034032 2542540 2905760 3129280 3698240 4068064 5085080 5811520 8136128 10170160 20340320 40680640
• Sum of all divisors σ(n): 131088384
• Sum of proper divisors (its aliquot sum) s(n): 90407744
• 40680640 is an abundant number, because the sum of its proper divisors (90407744) is greater than itself. Its abundance is 49727104

Bases of 40680640

• Binary: 10011011001011110011000000₂
• Hexadecimal: 0x26CBCC0
• Base-36: O7XDS

Squares and roots of 40680640

• 40680640 squared (40680640²) is 1654914470809600
• 40680640 cubed (40680640³) is 67322979817795846144000
• The square root of 40680640 is 6378.1376592231
• The cube root of 40680640 is 343.9240863675

Scales and comparisons

• 40,680,640 seconds is equal to 1 year, 15 weeks, 1 day, 20 hours, 10 minutes, 40 seconds.
• To count from 1 to 40,680,640 would take you about forty-eight weeks!

  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 40680640 cubic inches would be around 28.7 feet tall.

Recreational maths with 40680640

• 40680640 backwards is 04608604
• 40680640 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40680640's digits is 28
• More coming soon!