145490918139

Names of 145490918139

• Cardinal: 145490918139 can be written as One hundred forty-five billion, four hundred ninety million, nine hundred eighteen thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 1.45490918139 × 10¹¹

Factors of 145490918139

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 127

Divisors of 145490918139

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 7 9 21 23 41 49 53 63 69 123 147 159 161 207 287 343 369 371 441 477 483 529 861 943 1029 1113 1127 1219 1449 1587 1681 2009 2173 2583 2597 2829 3087 3339 3381 3657 3703 4761 5043 6027 6519 6601 7791 7889 8487 8533 10143 10971 11109 11767 14063 15129 15211 18081 18179 19557 19803 21689 23373 23667 25599 25921 28037 33327 35301 38663 42189 45633 46207 49979 54537 59409 59731 65067 71001 76797 77763 82369 84111 89093 105903 106477 115989 126567 136899 138621 149937 151823 163611 179193 181447 195201 196259 233289 247107 252333 267279 270641 319431 323449 347967 349853 415863 418117 449811 455469 537579 544341 576583 588777 623651 741321 745339 801837 811923 889249 958293 970347 1049559 1062761 1149517 1254351 1366407 1373813 1633023 1729749 1766331 1870953 1894487 2049139 2236017 2435769 2448971 2667747 2911041 3148677 3188283 3448551 3763053 4121439 4365557 5189247 5612859 5683461 6147417 6224743 6708051 7346913 7439327 8003241 8046619 9564849 9616691 10345653 12364317 13096671 13261409 14343973 17050383 17142797 18442251 18674229 22040739 22317981 24139857 28850073 30558899 39290013 39784227 43031919 43573201 47130197 51428391 56022687 56326333 66953943 72419571 86550219 91676697 100407811 119352681 129095757 130719603 141390591 154285173 168978999 275030091 301223433 305012407 329911379 392158809 394284331 424171773 506936997 702854677 903670299 915037221 989734137 1182852993 2108564031 2309379653 2745111663 2969202411 3548558979 6325692093 6928138959 16165657571 20784416877 48496972713 145490918139
• Sum of all divisors σ(n): 267551575200
• Sum of proper divisors (its aliquot sum) s(n): 122060657061
• 145490918139 is a deficient number, because the sum of its proper divisors (122060657061) is less than itself. Its deficiency is 23430261078

Bases of 145490918139

• Binary: 10000111011111111011110011101011111011₂
• Hexadecimal: 0x21DFEF3AFB
• Base-36: 1UU5JAWR

Squares and roots of 145490918139

• 145490918139 squared (145490918139²) is 21167607260929199223321
• 145490918139 cubed (145490918139³) is 3079694615198352137275017990719619
• The square root of 145490918139 is 381432.7177091655
• The cube root of 145490918139 is 5259.5101171545

Scales and comparisons

• 145,490,918,139 seconds is equal to 4,626 years, 8 weeks, 2 days, 15 hours, 55 minutes, 39 seconds.
• To count from 1 to 145,490,918,139 would take you about nine thousand, two hundred fifty-two 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 145490918139 cubic inches would be around 438.3 feet tall.

Recreational maths with 145490918139

• 145490918139 backwards is 931819094541
• The number of decimal digits it has is: 12
• The sum of 145490918139's digits is 54
• More coming soon!