81142377264

Names of 81142377264

• Cardinal: 81142377264 can be written as Eighty-one billion, one hundred forty-two million, three hundred seventy-seven thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 8.1142377264 × 10¹⁰

Factors of 81142377264

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 7626

Divisors of 81142377264

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 54 71 72 78 81 104 108 117 142 144 156 162 208 213 216 234 243 284 312 324 351 426 432 468 486 568 624 639 648 702 729 852 923 936 972 1053 1136 1278 1296 1404 1458 1704 1846 1872 1917 1944 2106 2556 2769 2808 2916 3159 3408 3692 3834 3888 4212 5112 5538 5616 5751 5832 6318 7384 7537 7668 8307 8424 9477 10224 11076 11502 11664 12636 14768 15074 15336 16614 16848 17253 18954 22152 22611 23004 24921 25272 30148 30672 33228 34506 37908 44304 45222 46008 49842 50544 51759 60296 66456 67833 69012 74763 75816 90444 92016 97981 99684 103518 120592 132912 135666 138024 149526 151632 180888 195962 199368 203499 207036 224289 271332 276048 293943 299052 361776 391924 398736 406998 414072 448578 535127 542664 587886 598104 610497 672867 783848 813996 828144 881829 897156 1070254 1085328 1175772 1196208 1220994 1345734 1567696 1605381 1627992 1763658 1794312 1831491 2140508 2351544 2441988 2645487 2691468 3210762 3255984 3527316 3588624 3662982 4281016 4703088 4816143 4883976 5290974 5382936 5494473 6421524 6956651 7054632 7325964 7936461 8562032 9632286 9767952 10581948 10765872 10988946 12843048 13913302 14109264 14448429 14651928 15872922 19264572 20869953 21163896 21977892 23809383 25686096 27826604 28896858 29303856 31745844 38529144 41739906 42327792 43345287 43955784 47618766 55653208 57793716 62609859 63491688 71428149 77058288 83479812 86690574 87911568 95237532 111306416 115587432 125219718 126983376 130035861 142856298 166959624 173381148 187829577 190475064 231174864 250439436 260071722 285712596 333919248 346762296 375659154 380950128 390107583 500878872 520143444 563488731 571425192 693524592 751318308 780215166 1001757744 1040286888 1126977462 1142850384 1502636616 1560430332 1690466193 2080573776 2253954924 3005273232 3120860664 3380932386 4507909848 5071398579 6241721328 6761864772 9015819696 10142797158 13523729544 20285594316 27047459088 40571188632 81142377264
• Sum of all divisors σ(n): 257453334432
• Sum of proper divisors (its aliquot sum) s(n): 176310957168
• 81142377264 is an abundant number, because the sum of its proper divisors (176310957168) is greater than itself. Its abundance is 95168579904

Bases of 81142377264

• Binary: 1001011100100011101100110101100110000₂
• Hexadecimal: 0x12E4766B30
• Base-36: 119Y2R00

Squares and roots of 81142377264

• 81142377264 squared (81142377264²) is 6584085388053304125696
• 81142377264 cubed (81142377264³) is 534248340495811041908952508575744
• The square root of 81142377264 is 284855.0109511855
• The cube root of 81142377264 is 4329.2823325443

Scales and comparisons

• 81,142,377,264 seconds is equal to 2,580 years, 3 weeks, 6 days, 21 hours, 14 minutes, 24 seconds.
• To count from 1 to 81,142,377,264 would take you about five thousand, one hundred sixty 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 81142377264 cubic inches would be around 360.8 feet tall.

Recreational maths with 81142377264

• 81142377264 backwards is 46277324118
• The number of decimal digits it has is: 11
• The sum of 81142377264's digits is 45
• More coming soon!