81764385792

Names of 81764385792

• Cardinal: 81764385792 can be written as Eighty-one billion, seven hundred sixty-four million, three hundred eighty-five thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 8.1764385792 × 10¹⁰

Factors of 81764385792

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 607

Divisors of 81764385792

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 31 32 41 43 48 62 64 82 86 93 96 123 124 128 129 164 172 186 192 246 248 256 258 328 344 372 384 487 492 496 512 516 656 688 744 768 974 984 992 1024 1032 1271 1312 1333 1376 1461 1488 1536 1763 1948 1968 1984 2064 2542 2624 2666 2752 2922 2976 3072 3526 3813 3896 3936 3968 3999 4128 5084 5248 5289 5332 5504 5844 5952 7052 7626 7792 7872 7936 7998 8256 10168 10496 10578 10664 11008 11688 11904 14104 15097 15252 15584 15744 15872 15996 16512 19967 20336 20941 20992 21156 21328 22016 23376 23808 28208 30194 30504 31168 31488 31744 31992 33024 39934 40672 41882 41984 42312 42656 44032 45291 46752 47616 54653 56416 59901 60388 61008 62336 62823 62976 63984 66048 79868 81344 83764 84624 85312 90582 93504 95232 109306 112832 119802 120776 122016 124672 125646 125952 127968 132096 159736 162688 163959 167528 169248 170624 181164 187008 218612 225664 239604 241552 244032 249344 251292 255936 319472 325376 327918 335056 338496 341248 362328 374016 437224 451328 479208 483104 488064 498688 502584 511872 618977 638944 649171 650752 655836 670112 676992 682496 724656 748032 858581 874448 902656 958416 966208 976128 1005168 1023744 1237954 1277888 1298342 1301504 1311672 1340224 1353984 1364992 1449312 1496064 1717162 1748896 1805312 1856931 1916832 1932416 1947513 1952256 2010336 2047488 2475908 2555776 2575743 2596684 2623344 2680448 2707968 2898624 3434324 3497792 3713862 3833664 3864832 3895026 3904512 4020672 4094976 4951816 5111552 5151486 5193368 5246688 5360896 5415936 5797248 6868648 6995584 7427724 7667328 7729664 7790052 8041344 9903632 10223104 10302972 10386736 10493376 10721792 11594496 13737296 13991168 14855448 15334656 15459328 15580104 16082688 19807264 20446208 20605944 20773472 20986752 21443584 23188992 26616011 27474592 27982336 29710896 30669312 31160208 32165376 39614528 41211888 41546944 41973504 46377984 53232022 54949184 55964672 59421792 61338624 62320416 64330752 79229056 79848033 82423776 83093888 83947008 106464044 109898368 118843584 124640832 158458112 159696066 164847552 166187776 167894016 212928088 219796736 237687168 249281664 316916224 319392132 329695104 332375552 425856176 439593472 475374336 498563328 633832448 638784264 659390208 664751104 851712352 879186944 950748672 997126656 1277568528 1318780416 1703424704 1901497344 1994253312 2555137056 2637560832 3406849408 5110274112 6813698816 10220548224 13627397632 20441096448 27254795264 40882192896 81764385792
• Sum of all divisors σ(n): 236292317184
• Sum of proper divisors (its aliquot sum) s(n): 154527931392
• 81764385792 is an abundant number, because the sum of its proper divisors (154527931392) is greater than itself. Its abundance is 72763545600

Bases of 81764385792

• Binary: 1001100001001100010011000010000000000₂
• Hexadecimal: 0x1309898400
• Base-36: 11K8EJUO

Squares and roots of 81764385792

• 81764385792 squared (81764385792²) is 6685414783943011467264
• 81764385792 cubed (81764385792³) is 546628833573856716551653674713088
• The square root of 81764385792 is 285944.7250641281
• The cube root of 81764385792 is 4340.3164307357

Scales and comparisons

• 81,764,385,792 seconds is equal to 2,599 years, 44 weeks, 3 days, 1 hour, 23 minutes, 12 seconds.
• To count from 1 to 81,764,385,792 would take you about five thousand, one hundred ninety-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 81764385792 cubic inches would be around 361.7 feet tall.

Recreational maths with 81764385792

• 81764385792 backwards is 29758346718
• The number of decimal digits it has is: 11
• The sum of 81764385792's digits is 60
• More coming soon!