661401406080

Names of 661401406080

• Cardinal: 661401406080 can be written as Six hundred sixty-one billion, four hundred one million, four hundred six thousand and eighty.

Scientific notation

• Scientific notation: 6.6140140608 × 10¹¹

Factors of 661401406080

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 5817

Divisors of 661401406080

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 32 36 38 40 45 48 57 60 64 72 76 80 90 95 96 114 120 128 144 152 160 171 180 190 192 228 240 285 288 304 320 342 360 380 384 456 480 570 576 608 640 684 720 760 855 912 960 1140 1152 1216 1367 1368 1440 1520 1710 1824 1920 2280 2432 2734 2736 2880 3040 3420 3648 4101 4421 4560 5468 5472 5760 6080 6835 6840 7296 8202 8842 9120 10936 10944 12160 12303 13263 13670 13680 16404 17684 18240 20505 21872 21888 22105 24606 25973 26526 27340 27360 32808 35368 36480 39789 41010 43744 44210 49212 51946 53052 54680 54720 61515 65616 66315 70736 77919 79578 82020 83999 87488 88420 98424 103892 106104 109360 109440 123030 129865 131232 132630 141472 155838 159156 164040 167998 174976 176840 196848 198945 207784 212208 218720 233757 246060 251997 259730 262464 265260 282944 311676 318312 328080 335996 353680 389595 393696 397890 415568 419995 424416 437440 467514 492120 503994 519460 524928 530520 565888 623352 636624 656160 671992 707360 755991 779190 787392 795780 831136 839990 848832 874880 935028 984240 1007988 1038920 1061040 1168785 1246704 1259985 1273248 1312320 1343984 1414720 1511982 1558380 1574784 1591560 1662272 1679980 1697664 1870056 1968480 2015976 2077840 2122080 2337570 2493408 2519970 2546496 2624640 2687968 2829440 3023964 3116760 3183120 3324544 3359960 3740112 3779955 3936960 4031952 4155680 4244160 4675140 4986816 5039940 5092992 5375936 6043507 6047928 6233520 6366240 6719920 7480224 7559910 7873920 8063904 8311360 8488320 9350280 9973632 10079880 10751872 12087014 12095856 12467040 12732480 13439840 14960448 15119820 16127808 16622720 18130521 18700560 20159760 24174028 24191712 24934080 25464960 26879680 29920896 30217535 30239640 32255616 36261042 37401120 40319520 48348056 48383424 49868160 53759360 54391563 60435070 60479280 72522084 74802240 80639040 90652605 96696112 96766848 108783126 114826633 120870140 120958560 145044168 149604480 161278080 181305210 193392224 217566252 229653266 241740280 241917120 271957815 290088336 344479899 362610420 386784448 435132504 459306532 483480560 483834240 543915630 574133165 580176672 688959798 725220840 773568896 870265008 918613064 966961120 1033439697 1087831260 1148266330 1160353344 1377919596 1450441680 1722399495 1740530016 1837226128 1933922240 2066879394 2175662520 2296532660 2320706688 2755839192 2900883360 3444798990 3481060032 3674452256 3867844480 4133758788 4351325040 4593065320 5167198485 5511678384 5801766720 6889597980 6962120064 7348904512 8267517576 8702650080 9186130640 10334396970 11023356768 11603533440 13779195960 14697809024 16535035152 17405300160 18372261280 20668793940 22046713536 27558391920 33070070304 34810600320 36744522560 41337587880 44093427072 55116783840 66140140608 73489045120 82675175760 110233567680 132280281216 165350351520 220467135360 330700703040 661401406080
• Sum of all divisors σ(n): 2406409948800
• Sum of proper divisors (its aliquot sum) s(n): 1745008542720
• 661401406080 is an abundant number, because the sum of its proper divisors (1745008542720) is greater than itself. Its abundance is 1083607136640

Bases of 661401406080

• Binary: 1001100111111110100110001000101010000000₂
• Hexadecimal: 0x99FE988A80
• Base-36: 8FUDBJ40

Squares and roots of 661401406080

• 661401406080 squared (661401406080²) is 437451819964601060966400
• 661401406080 cubed (661401406080³) is 289331248816842157549436763635712000
• The square root of 661401406080 is 813265.8889194849
• The cube root of 661401406080 is 8712.7456907373

Scales and comparisons

• 661,401,406,080 seconds is equal to 21,030 years, 26 weeks, 6 days, 20 hours, 48 minutes.
• To count from 1 to 661,401,406,080 would take you about forty-two thousand and sixty-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 661401406080 cubic inches would be around 726.1 feet tall.

Recreational maths with 661401406080

• 661401406080 backwards is 080604104166
• 661401406080 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 661401406080's digits is 36
• More coming soon!