81444329472
81,444,329,472 is an even composite number composed of five prime numbers multiplied together.
81444329472 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 81444329472:
211 × 3 × 112 × 71 × 1543
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 11 × 11 × 71 × 1543)See below for interesting mathematical facts about the number 81444329472 from the Numbermatics database.
Names of 81444329472
- Cardinal: 81444329472 can be written as Eighty-one billion, four hundred forty-four million, three hundred twenty-nine thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 8.1444329472 × 1010
Factors of 81444329472
Divisors of 81444329472
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 71 88 96 121 128 132 142 176 192 213 242 256 264 284 352 363 384 426 484 512 528 568 704 726 768 781 852 968 1024 1056 1136 1408 1452 1536 1543 1562 1704 1936 2048 2112 2272 2343 2816 2904 3072 3086 3124 3408 3872 4224 4544 4629 4686 5632 5808 6144 6172 6248 6816 7744 8448 8591 9088 9258 9372 11264 11616 12344 12496 13632 15488 16896 16973 17182 18176 18516 18744 22528 23232 24688 24992 25773 27264 30976 33792 33946 34364 36352 37032 37488 46464 49376 49984 50919 51546 54528 61952 67584 67892 68728 72704 74064 74976 92928 98752 99968 101838 103092 109056 109553 123904 135784 137456 145408 148128 149952 185856 186703 197504 199936 203676 206184 218112 219106 247808 271568 274912 296256 299904 328659 371712 373406 395008 399872 407352 412368 436224 438212 543136 549824 560109 592512 599808 657318 743424 746812 790016 799744 814704 824736 876424 1086272 1099648 1120218 1185024 1199616 1205083 1314636 1493624 1580032 1599488 1629408 1649472 1752848 2172544 2199296 2240436 2370048 2399232 2410166 2629272 2987248 3160064 3258816 3298944 3505696 3615249 4345088 4398592 4480872 4740096 4798464 4820332 5258544 5974496 6517632 6597888 7011392 7230498 8690176 8797184 8961744 9480192 9640664 10517088 11948992 13035264 13195776 13255913 14022784 14460996 17380352 17594368 17923488 19281328 21034176 23897984 26070528 26391552 26511826 28045568 28921992 34760704 35846976 38562656 39767739 42068352 47795968 52141056 52783104 53023652 56091136 57843984 71693952 77125312 79535478 84136704 95591936 104282112 106047304 112182272 115687968 143387904 154250624 159070956 168273408 191183872 212094608 224364544 231375936 286775808 308501248 318141912 336546816 382367744 424189216 462751872 573551616 617002496 636283824 673093632 848378432 925503744 1147103232 1234004992 1272567648 1696756864 1851007488 2468009984 2545135296 3393513728 3702014976 5090270592 6787027456 7404029952 10180541184 13574054912 20361082368 27148109824 40722164736 81444329472
- Sum of all divisors σ(n): 242183934720
- Sum of proper divisors (its aliquot sum) s(n): 160739605248
- 81444329472 is an abundant number, because the sum of its proper divisors (160739605248) is greater than itself. Its abundance is 79295275776
Bases of 81444329472
- Binary: 10010111101100111010111011000000000002
- Hexadecimal: 0x12F675D800
- Base-36: 11EXUMTC
Squares and roots of 81444329472
- 81444329472 squared (814443294722) is 6633178803143687798784
- 81444329472 cubed (814443294723) is 540234799889921138441270536962048
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The
square root of 81444329472 is 285384.5291391949 -
The
cube root of 81444329472 is 4334.6458192267
Scales and comparisons
How big is 81444329472?- 81,444,329,472 seconds is equal to 2,589 years, 35 weeks, 1 day, 16 hours, 51 minutes, 12 seconds.
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To count from 1 to 81,444,329,472 would take you about five thousand, one hundred seventy-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 81444329472 cubic inches would be around 361.2 feet tall.
Recreational maths with 81444329472
- 81444329472 backwards is 27492344418
- 81444329472 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81444329472's digits is 48
- More coming soon!
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