18240769728

Names of 18240769728

• Cardinal: 18240769728 can be written as Eighteen billion, two hundred forty million, seven hundred sixty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8240769728 × 10¹⁰

Factors of 18240769728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 24

Divisors of 18240769728

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 64 72 76 81 96 108 114 144 152 162 171 192 216 228 243 288 304 324 342 361 432 456 486 513 576 608 648 684 722 729 864 912 972 1026 1083 1216 1296 1368 1444 1458 1539 1728 1824 1944 2052 2166 2187 2592 2736 2888 2916 3078 3249 3648 3888 4104 4332 4374 4617 5184 5472 5776 5832 6156 6498 6859 7776 8208 8664 8748 9234 9747 10944 11552 11664 12312 12996 13718 13851 15552 16416 17328 17496 18468 19494 20577 23104 23328 24624 25992 27436 27702 29241 32832 34656 34992 36936 38988 41154 41553 46656 49248 51984 54872 55404 58482 61731 69312 69984 73872 77976 82308 83106 87723 98496 103968 109744 110808 116964 123462 130321 139968 147744 155952 164616 166212 175446 185193 207936 219488 221616 233928 246924 260642 263169 295488 311904 329232 332424 350892 370386 390963 438976 443232 467856 493848 521284 526338 555579 623808 658464 664848 701784 740772 781926 789507 886464 935712 987696 1042568 1052676 1111158 1172889 1316928 1329696 1403568 1481544 1563852 1579014 1666737 1871424 1975392 2085136 2105352 2222316 2345778 2659392 2807136 2963088 3127704 3158028 3333474 3518667 3950784 4170272 4210704 4444632 4691556 5000211 5614272 5926176 6255408 6316056 6666948 7037334 8340544 8421408 8889264 9383112 10000422 10556001 11852352 12510816 12632112 13333896 14074668 15000633 16842816 17778528 18766224 20000844 21112002 25021632 25264224 26667792 28149336 30001266 31668003 35557056 37532448 40001688 42224004 50528448 53335584 56298672 60002532 63336006 75064896 80003376 84448008 95004009 106671168 112597344 120005064 126672012 160006752 168896016 190008018 225194688 240010128 253344024 285012027 320013504 337792032 380016036 480020256 506688048 570024054 675584064 760032072 960040512 1013376096 1140048108 1520064144 2026752192 2280096216 3040128288 4560192432 6080256576 9120384864 18240769728
• Sum of all divisors σ(n): 57302410160
• Sum of proper divisors (its aliquot sum) s(n): 39061640432
• 18240769728 is an abundant number, because the sum of its proper divisors (39061640432) is greater than itself. Its abundance is 20820870704

Bases of 18240769728

• Binary: 10000111111001111000000111011000000₂
• Hexadecimal: 0x43F3C0EC0
• Base-36: 8DO3000

Squares and roots of 18240769728

• 18240769728 squared (18240769728²) is 332725680269921193984
• 18240769728 cubed (18240769728³) is 6069172516395785384168962916352
• The square root of 18240769728 is 135058.3937709909
• The cube root of 18240769728 is 2632.3747737933

Scales and comparisons

• 18,240,769,728 seconds is equal to 580 years, 28 minutes, 48 seconds.
• To count from 1 to 18,240,769,728 would take you about one 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 18240769728 cubic inches would be around 219.4 feet tall.

Recreational maths with 18240769728

• 18240769728 backwards is 82796704281
• 18240769728 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18240769728's digits is 54
• More coming soon!