81000829750016

Names of 81000829750016

• Cardinal: 81000829750016 can be written as Eighty-one trillion, eight hundred twenty-nine million, seven hundred fifty thousand and sixteen.

Scientific notation

• Scientific notation: 8.1000829750016 × 10¹³

Factors of 81000829750016

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 5515

Divisors of 81000829750016

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 4 8 11 16 22 31 32 44 62 64 88 124 128 176 248 256 341 352 496 682 704 961 992 1364 1408 1922 1984 2728 2816 3844 3968 5456 5471 7688 7936 10571 10912 10942 15376 21142 21824 21884 30752 42284 43648 43768 60181 61504 84568 87296 87536 120362 123008 169136 169601 175072 240724 246016 338272 339202 350144 481448 676544 678404 700288 962896 1353088 1356808 1400576 1865611 1925792 2706176 2713616 3731222 3851584 5257631 5427232 7462444 7703168 10515262 10854464 14924888 15406336 21030524 21708928 29849776 29931841 42061048 43417856 57833941 59699552 59863682 84122096 115667882 119399104 119727364 168244192 231335764 238798208 239454728 329250251 336488384 462671528 477596416 478909456 658500502 672976768 925343056 927887071 957818912 1317001004 1345953536 1850686112 1855774142 1915637824 2634002008 3701372224 3711548284 3831275648 5268004016 7402744448 7423096568 7662551296 10206757781 10536008032 14805488896 14846193136 20413515562 21072016064 28764499201 29692386272 40827031124 42144032128 57528998402 59384772544 81654062248 84288064256 115057996804 118769545088 163308124496 230115993608 237539090176 316409491211 326616248992 460231987216 632818982422 653232497984 920463974432 1265637964844 1306464995968 1840927948864 2531275929688 2612929991936 3681855897728 5062551859376 7363711795456 10125103718752 20250207437504 40500414875008 81000829750016
• Sum of all divisors σ(n): 182290574092788
• Sum of proper divisors (its aliquot sum) s(n): 101289744342772
• 81000829750016 is an abundant number, because the sum of its proper divisors (101289744342772) is greater than itself. Its abundance is 20288914592756

Bases of 81000829750016

• Binary: 10010011010101101111001101011110000101100000000₂
• Hexadecimal: 0x49AB79AF0B00
• Base-36: SPN9MNJ7K

Squares and roots of 81000829750016

• 81000829750016 squared (81000829750016²) is 6561134420191077089052000256
• 81000829750016 cubed (81000829750016³) is 531457332136867375910149718866637248004096
• The square root of 81000829750016 is 9000046.0971050587
• The cube root of 81000829750016 is 43267.6348502739

Scales and comparisons

• 81,000,829,750,016 seconds is equal to 2,575,575 years, 43 weeks, 2 days, 14 hours, 6 minutes, 56 seconds.
• To count from 1 to 81,000,829,750,016 would take you about six million, four hundred thirty-eight thousand, nine hundred thirty-nine 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 81000829750016 cubic inches would be around 3605.6 feet tall.

Recreational maths with 81000829750016

• 81000829750016 backwards is 61005792800018
• The number of decimal digits it has is: 14
• The sum of 81000829750016's digits is 47
• More coming soon!