80781208640

Names of 80781208640

• Cardinal: 80781208640 can be written as Eighty billion, seven hundred eighty-one million, two hundred eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 8.078120864 × 10¹⁰

Factors of 80781208640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 944

Divisors of 80781208640

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 4 5 8 10 11 16 19 20 22 31 32 38 40 44 47 55 62 64 76 80 88 94 95 110 124 152 155 160 176 188 190 209 220 235 248 304 310 320 341 352 376 380 418 440 470 496 517 589 608 620 682 704 752 760 829 836 880 893 940 992 1034 1045 1178 1216 1240 1364 1457 1504 1520 1658 1672 1705 1760 1786 1880 1984 2068 2090 2356 2480 2585 2728 2914 2945 3008 3040 3316 3344 3410 3520 3572 3760 4136 4145 4180 4465 4712 4960 5170 5456 5828 5890 6080 6479 6632 6688 6820 7144 7285 7520 8272 8290 8360 8930 9119 9424 9823 9920 10340 10912 11656 11780 12958 13264 13376 13640 14288 14570 15040 15751 16027 16544 16580 16720 17860 18238 18848 19646 20680 21824 23312 23560 25699 25916 26528 27280 27683 28576 29140 31502 32054 32395 33088 33160 33440 35720 36476 37696 38963 39292 41360 45595 46624 47120 49115 51398 51832 53056 54560 55366 57152 58280 63004 64108 64790 66320 66880 71440 72952 77926 78584 78755 80135 82720 91190 93248 94240 98230 102796 103664 109120 110732 116560 126008 128216 128495 129580 132640 138415 142880 145904 155852 157168 157510 160270 165440 173261 182380 188480 194815 196460 205592 207328 221464 233120 252016 256432 256990 259160 265280 276830 282689 285760 291808 304513 311704 314336 315020 320540 346522 364760 389630 392920 411184 414656 428593 442928 466240 488281 504032 512864 513980 518320 553660 565378 583616 609026 623408 628672 630040 641080 693044 729520 740297 779260 785840 822368 857186 866305 885856 976562 1008064 1025728 1027960 1036640 1107320 1130756 1207853 1218052 1246816 1260080 1282160 1386088 1413445 1459040 1480594 1522565 1558520 1571680 1644736 1714372 1732610 1771712 1953124 2055920 2073280 2142965 2214640 2261512 2415706 2436104 2441405 2493632 2520160 2564320 2772176 2826890 2918080 2961188 3045130 3117040 3143360 3428744 3465220 3701485 3906248 4111840 4285930 4429280 4523024 4831412 4872208 4882810 5040320 5128640 5371091 5544352 5653780 5922376 6039265 6090260 6234080 6857488 6930440 7402970 7812496 8143267 8223680 8571860 8858560 9046048 9662824 9744416 9765620 10742182 11088704 11307560 11844752 12078530 12180520 12468160 13286383 13714976 13860880 14805940 15624992 16286534 17143720 18092096 19325648 19488832 19531240 21484364 22615120 22949207 23689504 24157060 24361040 26572766 26855455 27429952 27721760 29611880 31249984 32573068 34287440 38651296 39062480 40716335 42968728 45230240 45898414 47379008 48314120 48722080 53145532 53710910 55443520 59223760 65146136 66431915 68574880 77302592 78124960 81432670 85937456 90460480 91796828 96628240 97444160 106291064 107421820 114746035 118447520 130292272 132863830 137149760 156249920 162865340 171874912 183593656 193256480 212582128 214843640 229492070 236895040 252441277 260584544 265727660 325730680 343749824 367187312 386512960 425164256 429687280 458984140 504882554 521169088 531455320 651461360 734374624 850328512 859374560 917968280 1009765108 1062910640 1262206385 1302922720 1468749248 1718749120 1835936560 2019530216 2125821280 2524412770 2605845440 3671873120 4039060432 4251642560 5048825540 7343746240 8078120864 10097651080 16156241728 20195302160 40390604320 80781208640
• Sum of all divisors σ(n): 233150054400
• Sum of proper divisors (its aliquot sum) s(n): 152368845760
• 80781208640 is an abundant number, because the sum of its proper divisors (152368845760) is greater than itself. Its abundance is 71587637120

Bases of 80781208640

• Binary: 1001011001110111011110110110001000000₂
• Hexadecimal: 0x12CEEF6C40
• Base-36: 113Z1NI8

Squares and roots of 80781208640

• 80781208640 squared (80781208640²) is 6525603669339210649600
• 80781208640 cubed (80781208640³) is 527146151514840346418247532544000
• The square root of 80781208640 is 284220.3522621137
• The cube root of 80781208640 is 4322.8494974989

Scales and comparisons

• 80,781,208,640 seconds is equal to 2,568 years, 30 weeks, 5 days, 16 hours, 37 minutes, 20 seconds.
• To count from 1 to 80,781,208,640 would take you about five thousand, one hundred thirty-seven 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 80781208640 cubic inches would be around 360.2 feet tall.

Recreational maths with 80781208640

• 80781208640 backwards is 04680218708
• 80781208640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 80781208640's digits is 44
• More coming soon!