18641742912

Names of 18641742912

• Cardinal: 18641742912 can be written as Eighteen billion, six hundred forty-one million, seven hundred forty-two thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.8641742912 × 10¹⁰

Factors of 18641742912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 276

Divisors of 18641742912

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 101 104 117 144 156 157 192 202 208 234 288 303 312 314 404 416 468 471 576 606 624 628 808 832 909 936 942 1212 1248 1256 1313 1413 1616 1818 1872 1884 2041 2424 2496 2512 2626 2826 3232 3636 3744 3768 3939 4082 4848 5024 5252 5652 6123 6464 7272 7488 7536 7878 8164 9696 10048 10504 11304 11817 12246 14544 15072 15756 15857 16328 18369 19392 21008 22608 23634 24492 24649 29088 30144 31512 31714 32656 36738 42016 45216 47268 47571 48984 49298 58176 63024 63428 65312 73476 73947 84032 90432 94536 95142 97968 98596 126048 126856 130624 142713 146952 147894 189072 190284 195936 197192 206141 221841 252096 253712 285426 293904 295788 320437 378144 380568 391872 394384 412282 443682 507424 570852 587808 591576 618423 640874 756288 761136 788768 824564 887364 961311 1014848 1141704 1175616 1183152 1236846 1281748 1522272 1577536 1649128 1774728 1855269 1922622 2283408 2366304 2473692 2489549 2563496 2883933 3044544 3298256 3549456 3710538 3845244 4566816 4732608 4947384 4979098 5126992 5767866 6596512 7098912 7421076 7468647 7690488 9133632 9894768 9958196 10253984 11535732 13193024 14197824 14842152 14937294 15380976 19789536 19916392 20507968 22405941 23071464 29684304 29874588 30761952 32364137 39579072 39832784 44811882 46142928 59368608 59749176 61523904 64728274 79665568 89623764 92285856 97092411 118737216 119498352 129456548 159331136 179247528 184571712 194184822 238996704 258913096 291277233 358495056 388369644 477993408 517826192 582554466 716990112 776739288 1035652384 1165108932 1433980224 1553478576 2071304768 2330217864 3106957152 4660435728 6213914304 9320871456 18641742912
• Sum of all divisors σ(n): 58485677796
• Sum of proper divisors (its aliquot sum) s(n): 39843934884
• 18641742912 is an abundant number, because the sum of its proper divisors (39843934884) is greater than itself. Its abundance is 21202191972

Bases of 18641742912

• Binary: 10001010111001000100110110001000000₂
• Hexadecimal: 0x457226C40
• Base-36: 8KAT8W0

Squares and roots of 18641742912

• 18641742912 squared (18641742912²) is 347514578797102239744
• 18641742912 cubed (18641742912³) is 6478277436107546163887036694528
• The square root of 18641742912 is 136534.7681435025
• The cube root of 18641742912 is 2651.5236479181

Scales and comparisons

• 18,641,742,912 seconds is equal to 592 years, 38 weeks, 6 days, 21 hours, 55 minutes, 12 seconds.
• To count from 1 to 18,641,742,912 would take you about one thousand, one hundred eighty-five 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 18641742912 cubic inches would be around 221 feet tall.

Recreational maths with 18641742912

• 18641742912 backwards is 21924714681
• The number of decimal digits it has is: 11
• The sum of 18641742912's digits is 45
• More coming soon!