820120664640

Names of 820120664640

• Cardinal: 820120664640 can be written as Eight hundred twenty billion, one hundred twenty million, six hundred sixty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 8.2012066464 × 10¹¹

Factors of 820120664640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 14915

Divisors of 820120664640

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 41 48 60 64 80 82 96 120 123 160 164 192 205 240 246 320 328 410 480 492 615 656 820 960 984 1230 1312 1567 1640 1968 2460 2624 3134 3280 3936 4701 4920 6268 6560 7835 7872 9402 9840 12536 13120 13297 15670 18804 19680 23505 25072 26594 31340 37608 39360 39891 47010 50144 53188 62680 64247 66485 75216 79782 94020 100288 106376 125360 128494 132970 150432 159564 188040 192741 199455 212752 250720 256988 265940 300864 319128 321235 376080 385482 398910 425504 501440 513976 531880 545177 638256 642470 752160 770964 797820 851008 963705 1027952 1063760 1090354 1276512 1284940 1504320 1541928 1595640 1635531 1927410 2055904 2127520 2180708 2553024 2569880 2725885 3083856 3191280 3271062 3854820 4111808 4255040 4361416 5139760 5451770 6167712 6382560 6542124 7709640 8177655 8722832 10279520 10903540 12335424 12765120 13084248 15419280 16355310 17445664 20559040 20836399 21807080 26168496 30838560 32710620 34891328 41672798 43614160 52336992 61677120 62509197 65421240 83345596 87228320 104181995 104673984 125018394 130842480 166691192 174456640 208363990 250036788 261684960 312545985 333382384 416727980 500073576 523369920 625091970 666764768 833455960 854292359 1000147152 1250183940 1333529536 1666911920 1708584718 2000294304 2500367880 2562877077 3333823840 3417169436 4000588608 4271461795 5000735760 5125754154 6667647680 6834338872 8542923590 10001471520 10251508308 12814385385 13668677744 17085847180 20002943040 20503016616 25628770770 27337355488 34171694360 41006033232 51257541540 54674710976 68343388720 82012066464 102515083080 136686777440 164024132928 205030166160 273373554880 410060332320 820120664640
• Sum of all divisors σ(n): 2669295412224
• Sum of proper divisors (its aliquot sum) s(n): 1849174747584
• 820120664640 is an abundant number, because the sum of its proper divisors (1849174747584) is greater than itself. Its abundance is 1029054082944

Bases of 820120664640

• Binary: 1011111011110011000000000011101001000000₂
• Hexadecimal: 0xBEF3003A40
• Base-36: AGRAO2TC

Squares and roots of 820120664640

• 820120664640 squared (820120664640²) is 672597904569555346329600
• 820120664640 cubed (820120664640³) is 551611440531055023741096936505344000
• The square root of 820120664640 is 905605.1372645807
• The cube root of 820120664640 is 9360.3607100379

Scales and comparisons

• 820,120,664,640 seconds is equal to 26,077 years, 15 weeks, 4 days, 7 hours, 44 minutes.
• To count from 1 to 820,120,664,640 would take you about fifty-two thousand, one hundred fifty-four 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 820120664640 cubic inches would be around 780 feet tall.

Recreational maths with 820120664640

• 820120664640 backwards is 046466021028
• The number of decimal digits it has is: 12
• The sum of 820120664640's digits is 39
• More coming soon!