81744796672

Names of 81744796672

• Cardinal: 81744796672 can be written as Eighty-one billion, seven hundred forty-four million, seven hundred ninety-six thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 8.1744796672 × 10¹⁰

Factors of 81744796672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 327

Divisors of 81744796672

• Number of divisors d(n): 198
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 56 64 77 88 112 121 128 154 176 224 242 256 307 308 352 448 484 512 614 616 704 847 896 968 1024 1228 1232 1408 1694 1792 1936 2149 2456 2464 2816 3377 3388 3584 3872 4298 4912 4928 5632 6754 6776 7168 7744 8596 9824 9856 11264 13508 13552 15488 17192 19648 19712 23639 27016 27104 30976 34384 37147 39296 39424 47278 54032 54208 61952 68768 74294 78592 78848 94249 94556 108064 108416 123904 137536 148588 157184 188498 189112 216128 216832 260029 275072 297176 314368 376996 378224 432256 433664 520058 550144 594352 659743 753992 756448 864512 867328 1036739 1040116 1100288 1188704 1319486 1507984 1512896 1729024 2073478 2080232 2200576 2377408 2638972 3015968 3025792 3458048 4146956 4160464 4754816 5277944 6031936 6051584 7257173 8293912 8320928 9509632 10555888 11404129 12063872 12103168 14514346 16587824 16641856 19019264 21111776 22808258 24127744 24206336 29028692 33175648 33283712 38038528 42223552 45616516 48255488 58057384 66351296 66567424 79828903 84447104 91233032 96510976 116114768 132702592 133134848 159657806 168894208 182466064 232229536 265405184 266269696 319315612 337788416 364932128 464459072 530810368 638631224 675576832 729864256 928918144 1061620736 1277262448 1459728512 1857836288 2554524896 2919457024 3715672576 5109049792 5838914048 7431345152 10218099584 11677828096 20436199168 40872398336 81744796672
• Sum of all divisors σ(n): 205945902456
• Sum of proper divisors (its aliquot sum) s(n): 124201105784
• 81744796672 is an abundant number, because the sum of its proper divisors (124201105784) is greater than itself. Its abundance is 42456309112

Bases of 81744796672

• Binary: 1001100001000010111101001110000000000₂
• Hexadecimal: 0x13085E9C00
• Base-36: 11JWQOSG

Squares and roots of 81744796672

• 81744796672 squared (81744796672²) is 6682211782946622275584
• 81744796672 cubed (81744796672³) is 546236043516214234946800030056448
• The square root of 81744796672 is 285910.4696788839
• The cube root of 81744796672 is 4339.9697852313

Scales and comparisons

• 81,744,796,672 seconds is equal to 2,599 years, 12 weeks, 7 hours, 57 minutes, 52 seconds.
• To count from 1 to 81,744,796,672 would take you about five thousand, one hundred ninety-eight 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 81744796672 cubic inches would be around 361.7 feet tall.

Recreational maths with 81744796672

• 81744796672 backwards is 27669744718
• The number of decimal digits it has is: 11
• The sum of 81744796672's digits is 61
• More coming soon!