664427851920

Names of 664427851920

• Cardinal: 664427851920 can be written as Six hundred sixty-four billion, four hundred twenty-seven million, eight hundred fifty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.6442785192 × 10¹¹

Factors of 664427851920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 964

Divisors of 664427851920

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 49 54 56 60 63 70 72 80 84 90 98 105 108 112 120 126 135 140 144 147 168 180 189 196 210 216 240 245 252 270 280 294 315 336 343 360 378 392 420 432 441 490 504 540 560 588 630 686 720 735 756 784 840 882 945 947 980 1008 1029 1080 1176 1260 1323 1372 1470 1512 1680 1715 1764 1890 1894 1960 2058 2160 2205 2352 2520 2646 2744 2841 2940 3024 3087 3430 3528 3780 3788 3920 4116 4410 4735 5040 5145 5292 5488 5682 5880 6174 6615 6629 6860 7056 7560 7576 8232 8523 8820 9261 9470 10290 10584 11364 11760 12348 13230 13258 13720 14205 15120 15152 15435 16464 17046 17640 18522 18940 19887 20580 21168 22728 24696 25569 26460 26516 27440 28410 30870 33145 34092 35280 37044 37880 39774 41160 42615 45456 46305 46403 49392 51138 52920 53032 56820 59661 61740 66290 68184 74088 75760 79548 82320 85230 92610 92806 99435 102276 105840 106064 113640 119322 123480 127845 132580 136368 139209 148176 159096 170460 178983 185220 185612 198870 204552 227280 232015 238644 246960 255690 265160 278418 298305 318192 324821 340920 357966 370440 371224 397740 409104 417627 464030 477288 511380 530320 556836 596610 649642 681840 696045 715932 740880 742448 795480 835254 894915 896809 928060 954576 974463 1022760 1113672 1193220 1252881 1299284 1392090 1431864 1590960 1624105 1670508 1789830 1793618 1856120 1948926 2045520 2088135 2227344 2386440 2505762 2598568 2690427 2784180 2863728 2923389 3248210 3341016 3579660 3587236 3712240 3897852 4176270 4484045 4772880 4872315 5011524 5197136 5380854 5568360 5846778 6264405 6277663 6496420 6682032 7159320 7174472 7795704 8071281 8352540 8770167 8968090 9744630 10023048 10761708 11136720 11693556 12528810 12555326 12992840 13452135 14318640 14348944 14616945 15591408 16142562 16705080 17540334 17936180 18832989 19489260 20046096 21523416 23387112 24213843 25057620 25110652 25985680 26904270 29233890 31388315 32285124 33410160 35080668 35872360 37665978 38978520 40356405 43046832 43850835 43943641 46774224 48427686 50115240 50221304 53808540 56498967 58467780 62776630 64570248 70161336 71744720 75331956 77957040 80712810 87701670 87887282 94164945 96855372 100230480 100442608 107617080 112997934 116935560 121069215 125553260 129140496 131830923 140322672 150663912 161425620 169496901 175403340 175774564 188329890 193710744 215234160 219718205 225995868 233871120 242138430 251106520 263661846 282494835 301327824 307605487 322851240 338993802 350806680 351549128 376659780 387421488 395492769 439436410 451991736 484276860 502213040 527323692 564989670 615210974 645702480 659154615 677987604 701613360 703098256 753319560 790985538 847484505 878872820 903983472 922816461 968553720 1054647384 1129979340 1186478307 1230421948 1318309230 1355975208 1506639120 1538027435 1581971076 1694969010 1757745640 1845632922 1937107440 1977463845 2109294768 2259958680 2372956614 2460843896 2636618460 2711950416 2768449383 3076054870 3163942152 3389938020 3515491280 3691265844 3954927690 4519917360 4614082305 4745913228 4921687792 5273236920 5536898766 5932391535 6152109740 6327884304 6779876040 7382531688 7909855380 8305348149 9228164610 9491826456 10546473840 11073797532 11864783070 12304219480 13559752080 13842246915 14765063376 15819710760 16610696298 18456329220 18983652912 22147595064 23729566140 24608438960 27684493830 31639421520 33221392596 36912658440 41526740745 44295190128 47459132280 55368987660 66442785192 73825316880 83053481490 94918264560 110737975320 132885570384 166106962980 221475950640 332213925960 664427851920
• Sum of all divisors σ(n): 2671724832000
• Sum of proper divisors (its aliquot sum) s(n): 2007296980080
• 664427851920 is an abundant number, because the sum of its proper divisors (2007296980080) is greater than itself. Its abundance is 1342869128160

Bases of 664427851920

• Binary: 1001101010110010111111000111000010010000₂
• Hexadecimal: 0x9AB2FC7090
• Base-36: 8H8F6RO0

Squares and roots of 664427851920

• 664427851920 squared (664427851920²) is 441464370407025447686400
• 664427851920 cubed (664427851920³) is 293321223328755134283051085797888000
• The square root of 664427851920 is 815124.4395305541
• The cube root of 664427851920 is 8726.0147561603

Scales and comparisons

• 664,427,851,920 seconds is equal to 21,126 years, 39 weeks, 4 hours, 12 minutes.
• To count from 1 to 664,427,851,920 would take you about forty-two thousand, two hundred fifty-three 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 664427851920 cubic inches would be around 727.2 feet tall.

Recreational maths with 664427851920

• 664427851920 backwards is 029158724466
• 664427851920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 664427851920's digits is 54
• More coming soon!