389985216075

Names of 389985216075

• Cardinal: 389985216075 can be written as Three hundred eighty-nine billion, nine hundred eighty-five million, two hundred sixteen thousand and seventy-five.

Scientific notation

• Scientific notation: 3.89985216075 × 10¹¹

Factors of 389985216075

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 13978

Divisors of 389985216075

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 5 7 9 13 15 21 25 35 37 39 45 63 65 75 91 105 111 117 175 185 195 225 259 273 315 325 333 455 481 525 555 585 777 819 925 975 1295 1365 1369 1443 1575 1665 2275 2331 2405 2775 2925 3367 3885 4095 4107 4329 6475 6825 6845 7215 8325 9583 10101 11655 12025 12321 13913 16835 17797 19425 20475 20535 21645 28749 30303 34225 36075 41739 47915 50505 53391 58275 61605 69565 84175 86247 88985 97391 102675 108225 124579 125217 143745 151515 160173 180869 208695 239575 252525 266955 292173 308025 347825 373737 431235 444925 486955 514781 542607 622895 626085 718725 757575 800865 876519 904345 1043475 1121211 1266083 1334775 1460865 1544343 1627821 1868685 2156175 2434775 2573905 2713035 3114475 3130425 3603467 3798249 4004325 4382595 4521725 4633029 5606055 6330415 6692153 7304325 7721715 8139105 9343425 10810401 11394747 12869525 13565175 18017335 18991245 19046897 20076459 21912975 23165145 28030275 31652075 32431203 33460765 38608575 40695525 46845071 54052005 56973735 57140691 60229377 90086675 94956225 95234485 100382295 115825725 133328279 140535213 162156015 167303825 171422073 234225355 247609661 270260025 284868675 285703455 301146885 399984837 421605639 476172425 501911475 666641395 702676065 742828983 810780075 857110365 1171126775 1199954511 1238048305 1428517275 1505734425 1733267627 1999924185 2108028195 2228486949 3333206975 3513380325 3714144915 4285551825 5199802881 5999772555 6190241525 8666338135 9999620925 10540140975 11142434745 15599408643 18570724575 25999014405 29998862775 43331690675 55712173725 77997043215 129995072025 389985216075
• Sum of all divisors σ(n): 883627381728
• Sum of proper divisors (its aliquot sum) s(n): 493642165653
• 389985216075 is an abundant number, because the sum of its proper divisors (493642165653) is greater than itself. Its abundance is 103656949578

Bases of 389985216075

• Binary: 101101011001100111011100010011001001011₂
• Hexadecimal: 0x5ACCEE264B
• Base-36: 4Z5N4MKR

Squares and roots of 389985216075

• 389985216075 squared (389985216075²) is 152088468757064438405625
• 389985216075 cubed (389985216075³) is 59312254350739661694316194120421875
• The square root of 389985216075 is 624487.9631145823
• The cube root of 389985216075 is 7306.0512536839

Scales and comparisons

• 389,985,216,075 seconds is equal to 12,400 years, 16 weeks, 5 days, 18 hours, 41 minutes, 15 seconds.
• To count from 1 to 389,985,216,075 would take you about twenty-four thousand, eight hundred 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 389985216075 cubic inches would be around 608.8 feet tall.

Recreational maths with 389985216075

• 389985216075 backwards is 570612589983
• 389985216075 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 389985216075's digits is 63
• More coming soon!