668490567680

Names of 668490567680

• Cardinal: 668490567680 can be written as Six hundred sixty-eight billion, four hundred ninety million, five hundred sixty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 6.6849056768 × 10¹¹

Factors of 668490567680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 995

Divisors of 668490567680

• Number of divisors d(n): 416
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 37 40 52 64 65 74 79 80 104 128 130 148 158 160 185 208 256 260 296 316 320 370 395 416 481 512 520 592 632 640 740 790 832 859 962 1024 1027 1040 1184 1264 1280 1480 1580 1664 1718 1924 2048 2054 2080 2368 2405 2528 2560 2923 2960 3160 3328 3436 3848 4096 4108 4160 4295 4736 4810 5056 5120 5135 5846 5920 6320 6656 6872 7696 8216 8320 8590 9472 9620 10112 10240 10270 11167 11692 11840 12640 13312 13744 14615 15392 16432 16640 17180 18944 19240 20224 20480 20540 22334 23384 23680 25280 26624 27488 29230 30784 31783 32864 33280 34360 37888 37999 38480 40448 41080 44668 46768 47360 50560 53248 54976 55835 58460 61568 63566 65728 66560 67861 68720 75776 75998 76960 80896 82160 89336 93536 94720 101120 109952 111670 116920 123136 127132 131456 133120 135722 137440 151552 151996 153920 158915 161792 164320 178672 187072 189440 189995 202240 219904 223340 233840 246272 254264 262912 266240 271444 274880 303992 307840 317830 323584 328640 339305 357344 374144 378880 379990 404480 413179 439808 446680 467680 492544 508528 525824 542888 549760 607984 615680 635660 657280 678610 714688 748288 757760 759980 808960 826358 879616 882193 893360 935360 985088 1017056 1051648 1085776 1099520 1215968 1231360 1271320 1314560 1357220 1429376 1496576 1519960 1617920 1652716 1759232 1764386 1786720 1870720 1970176 2034112 2065895 2103296 2171552 2199040 2431936 2462720 2510857 2542640 2629120 2714440 2858752 2993152 3039920 3305432 3518464 3528772 3573440 3741440 4068224 4131790 4206592 4343104 4398080 4410965 4863872 4925440 5021714 5085280 5258240 5428880 5717504 5986304 6079840 6610864 7057544 7146880 7482880 8136448 8263580 8686208 8796160 8821930 9727744 9850880 10043428 10170560 10516480 10857760 11435008 11972608 12159680 12554285 13221728 14115088 14293760 14965760 16272896 16527160 17372416 17592320 17643860 19455488 20086856 20341120 21032960 21715520 22870016 24319360 25108570 26443456 28230176 28587520 29931520 32545792 32641141 33054320 34744832 35287720 38910976 40173712 40682240 43431040 45740032 48638720 50217140 52886912 56460352 57175040 59863040 65091584 65282282 66108640 69489664 70575440 77821952 80347424 81364480 86862080 97277440 100434280 105773824 112920704 114350080 130183168 130564564 132217280 138979328 141150880 155643904 160694848 162728960 163205705 173724160 194554880 200868560 211547648 225841408 228700160 261129128 264434560 277958656 282301760 321389696 325457920 326411410 347448320 389109760 401737120 423095296 451682816 522258256 528869120 564603520 642779392 650915840 652822820 694896640 778219520 803474240 846190592 903365632 1044516512 1057738240 1129207040 1285558784 1305645640 1389793280 1606948480 1692381184 1806731264 2089033024 2115476480 2258414080 2571117568 2611291280 3213896960 3613462528 4178066048 4230952960 4516828160 5142235136 5222582560 6427793920 8356132096 8461905920 9033656320 10284470272 10445165120 12855587840 16712264192 18067312640 20890330240 25711175680 33424528384 41780660480 51422351360 66849056768 83561320960 133698113536 167122641920 334245283840 668490567680
• Sum of all divisors σ(n): 1798822233600
• Sum of proper divisors (its aliquot sum) s(n): 1130331665920
• 668490567680 is an abundant number, because the sum of its proper divisors (1130331665920) is greater than itself. Its abundance is 461841098240

Bases of 668490567680

• Binary: 1001101110100101001001001001000000000000₂
• Hexadecimal: 0x9BA5249000
• Base-36: 8J3M0V7K

Squares and roots of 668490567680

• 668490567680 squared (668490567680²) is 446879639077128660582400
• 668490567680 cubed (668490567680³) is 298734823611303249617126615416832000
• The square root of 668490567680 is 817612.7247542079
• The cube root of 668490567680 is 8743.7640146951

Scales and comparisons

• 668,490,567,680 seconds is equal to 21,255 years, 48 weeks, 3 days, 8 hours, 21 minutes, 20 seconds.
• To count from 1 to 668,490,567,680 would take you about forty-two thousand, five hundred eleven 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 668490567680 cubic inches would be around 728.6 feet tall.

Recreational maths with 668490567680

• 668490567680 backwards is 086765094866
• 668490567680 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668490567680's digits is 65
• More coming soon!