18182581872

Names of 18182581872

• Cardinal: 18182581872 can be written as Eighteen billion, one hundred eighty-two million, five hundred eighty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8182581872 × 10¹⁰

Factors of 18182581872

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 674

Divisors of 18182581872

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 52 56 73 78 84 91 104 112 127 146 156 168 182 208 219 254 273 292 312 336 364 381 438 449 508 511 546 584 624 728 762 876 889 898 949 1016 1022 1092 1168 1347 1456 1524 1533 1651 1752 1778 1796 1898 2032 2044 2184 2667 2694 2847 3048 3066 3143 3302 3504 3556 3592 3796 4088 4368 4953 5334 5388 5694 5837 6096 6132 6286 6604 6643 7112 7184 7592 8176 9271 9429 9906 10668 10776 11388 11557 11674 12264 12572 13208 13286 14224 15184 17511 18542 18858 19812 19929 21336 21552 22776 23114 23348 24528 25144 26416 26572 27813 32777 34671 35022 37084 37716 39624 39858 40859 42672 45552 46228 46696 50288 53144 55626 57023 64897 65554 69342 70044 74168 75432 79248 79716 81718 92456 93392 98331 106288 111252 114046 120523 122577 129794 131108 138684 140088 148336 150864 159432 163436 171069 184912 194691 196662 222504 228092 229439 241046 245154 259588 262216 277368 280176 318864 326872 342138 361569 389382 393324 399161 426101 445008 456184 458878 482092 490308 519176 524432 554736 653744 684276 688317 723138 741299 778764 786648 798322 843661 852202 912368 917756 964184 980616 1038352 1197483 1278303 1368552 1376634 1446276 1482598 1557528 1573296 1596644 1687322 1704404 1835512 1928368 1961232 2223897 2394966 2530983 2556606 2737104 2753268 2892552 2965196 2982707 3115056 3193288 3374644 3408808 3671024 4162679 4447794 4789932 5061966 5113212 5189093 5506536 5785104 5930392 5965414 6386576 6749288 6817616 8325358 8895588 8948121 9579864 10123932 10226424 10378186 11013072 11860784 11930828 12488037 13498576 15567279 16650716 17791176 17896242 19159728 20247864 20452848 20756372 23861656 24976074 29138753 31134558 33301432 35582352 35792484 40495728 41512744 47723312 49952148 54114827 58277506 62269116 66602864 71584968 83025488 87416259 99904296 108229654 116555012 124538232 143169936 162344481 174832518 199808592 216459308 233110024 249076464 324688962 349665036 378803789 432918616 466220048 649377924 699330072 757607578 865837232 1136411367 1298755848 1398660144 1515215156 2272822734 2597511696 3030430312 4545645468 6060860624 9091290936 18182581872
• Sum of all divisors σ(n): 59196211200
• Sum of proper divisors (its aliquot sum) s(n): 41013629328
• 18182581872 is an abundant number, because the sum of its proper divisors (41013629328) is greater than itself. Its abundance is 22831047456

Bases of 18182581872

• Binary: 10000111011110001000010111001110000₂
• Hexadecimal: 0x43BC42E70
• Base-36: 8CPFTYO

Squares and roots of 18182581872

• 18182581872 squared (18182581872²) is 330606283531983024384
• 18182581872 cubed (18182581872³) is 6011275817717926671376252366848
• The square root of 18182581872 is 134842.8043018981
• The cube root of 18182581872 is 2629.5727099109

Scales and comparisons

• 18,182,581,872 seconds is equal to 578 years, 7 weeks, 5 days, 13 hours, 11 minutes, 12 seconds.
• To count from 1 to 18,182,581,872 would take you about one thousand, one hundred fifty-six 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 18182581872 cubic inches would be around 219.1 feet tall.

Recreational maths with 18182581872

• 18182581872 backwards is 27818528181
• The number of decimal digits it has is: 11
• The sum of 18182581872's digits is 51
• More coming soon!