668096640

Names of 668096640

• Cardinal: 668096640 can be written as Six hundred sixty-eight million, ninety-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 6.6809664 × 10⁸

Factors of 668096640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 74

Divisors of 668096640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 27 30 32 36 40 41 45 46 48 54 60 64 69 72 80 82 90 92 96 108 115 120 123 128 135 138 144 160 164 180 184 192 205 207 216 230 240 246 270 276 288 320 328 345 360 368 369 384 410 414 432 460 480 492 540 552 576 615 621 640 656 690 720 736 738 820 828 864 920 943 960 984 1035 1080 1104 1107 1152 1230 1242 1312 1380 1440 1472 1476 1640 1656 1681 1728 1840 1845 1886 1920 1968 2070 2160 2208 2214 2460 2484 2624 2760 2829 2880 2944 2952 3105 3280 3312 3362 3456 3680 3690 3772 3936 4140 4320 4416 4428 4715 4920 4968 5043 5248 5520 5535 5658 5760 5904 6210 6560 6624 6724 7360 7380 7544 7872 8280 8405 8487 8640 8832 8856 9430 9840 9936 10086 11040 11070 11316 11808 12420 13120 13248 13448 14145 14720 14760 15088 15129 15744 16560 16810 16974 17280 17712 18860 19680 19872 20172 22080 22140 22632 23616 24840 25215 25461 26240 26496 26896 28290 29520 30176 30258 33120 33620 33948 35424 37720 38663 39360 39744 40344 42435 44160 44280 45264 45387 47232 49680 50430 50922 53792 56580 59040 60352 60516 66240 67240 67896 70848 75440 75645 77326 78720 79488 80688 84870 88560 90528 90774 99360 100860 101844 107584 113160 115989 118080 120704 121032 127305 132480 134480 135792 141696 150880 151290 154652 161376 169740 177120 181056 181548 193315 198720 201720 203688 215168 226320 226935 231978 236160 242064 254610 268960 271584 301760 302580 309304 322752 339480 347967 354240 362112 363096 386630 397440 403440 407376 452640 453870 463956 484128 509220 537920 543168 579945 603520 605160 618608 645504 678960 695934 708480 726192 773260 806880 814752 905280 907740 927912 968256 1018440 1043901 1075840 1086336 1159890 1210320 1237216 1357920 1391868 1452384 1546520 1613760 1629504 1739835 1810560 1815480 1855824 1936512 2036880 2087802 2319780 2420640 2474432 2715840 2783736 2904768 3093040 3227520 3259008 3479670 3630960 3711648 4073760 4175604 4639560 4841280 4948864 5219505 5431680 5567472 5809536 6186080 6959340 7261920 7423296 8147520 8351208 9279120 9682560 10439010 11134944 12372160 13918680 14523840 14846592 16295040 16702416 18558240 20878020 22269888 24744320 27837360 29047680 33404832 37116480 41756040 44539776 55674720 66809664 74232960 83512080 111349440 133619328 167024160 222698880 334048320 668096640
• Sum of all divisors σ(n): 2530742400
• Sum of proper divisors (its aliquot sum) s(n): 1862645760
• 668096640 is an abundant number, because the sum of its proper divisors (1862645760) is greater than itself. Its abundance is 1194549120

Bases of 668096640

• Binary: 100111110100100101100010000000₂
• Hexadecimal: 0x27D25880
• Base-36: B1RMO0

Squares and roots of 668096640

• 668096640 squared (668096640²) is 446353120379289600
• 668096640 cubed (668096640³) is 298207019978918907346944000
• The square root of 668096640 is 25847.5654559573
• The cube root of 668096640 is 874.2046170727

Scales and comparisons

• 668,096,640 seconds is equal to 21 years, 12 weeks, 4 days, 14 hours, 24 minutes.
• To count from 1 to 668,096,640 would take you about thirty-one 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 668096640 cubic inches would be around 72.9 feet tall.

Recreational maths with 668096640

• 668096640 backwards is 046690866
• 668096640 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 668096640's digits is 45
• More coming soon!