18428639398136331

Names of 18428639398136331

• Cardinal: 18428639398136331 can be written as Eighteen quadrillion, four hundred twenty-eight trillion, six hundred thirty-nine billion, three hundred ninety-eight million, one hundred thirty-six thousand, three hundred thirty-one.

Scientific notation

• Scientific notation: 1.8428639398136331 × 10¹⁶

Factors of 18428639398136331

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2990

Divisors of 18428639398136331

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 7 13 21 39 49 53 91 147 159 273 371 637 689 701 1113 1911 2067 2103 2213 2597 2809 4823 4907 6639 7791 8427 9113 14469 14721 15491 19663 27339 28769 33761 34349 36517 37153 46473 58989 63791 86307 101283 103047 108437 109551 111459 117289 137641 191373 201383 255619 260071 325311 351867 412923 446537 482989 604149 766857 780213 821023 1339611 1409681 1448967 1524757 1551313 1789333 1820497 1969109 2463069 3380923 4229043 4574271 4653939 4897369 5367999 5461491 5747161 5907327 6216317 10142769 10673299 10859191 13783763 14692107 17241483 18648951 20167069 23666461 25598417 32019897 32577573 34281583 41351289 43514219 60501207 63665797 70999383 74713093 76014337 76795251 80812121 82219589 96486341 102844749 130542657 141169483 179188919 190997391 224139279 228043011 239971081 242436363 246658767 259560557 289459023 304599533 423508449 445660579 537566757 565684847 575537123 719913243 778681671 913798599 988186381 1068854657 1254322433 1336981737 1697054541 1726611369 1816923899 2964559143 3119624053 3206563971 3374287241 3433055669 3762967299 3959793929 4028759861 4357638217 5450771697 7481982599 9358872159 10122861723 10299167007 11879381787 12086279583 12718467293 13072914651 13756709521 22445947797 23620010687 24031389683 30503467519 38155401879 41270128563 44629723697 52373878193 56649296821 70860032061 72094169049 91510402557 96296966647 133889171091 157121634579 165340074809 168219727781 169947890463 178837223773 181951950457 213524272633 288890899941 312408065879 396545077747 496020224427 504659183343 536511671319 545855851371 640572817899 674078766529 937224197637 1189635233241 1251860566411 1273663653199 2022236299587 2186856461153 2365375355941 2775815544229 3755581699233 3820990959597 6560569383459 7096126067823 8327446632687 8763023964877 8915645572393 9643453374221 16557627491587 26289071894631 26746936717179 28930360122663 49672882474761 67504173619547 115903392441109 125364893864873 202512520858641 347710177323327 376094681594619 472529215336829 877554257054111 1417587646010487 2632662771162333 6142879799378777 18428639398136331
• Sum of all divisors σ(n): 31432611293765136
• Sum of proper divisors (its aliquot sum) s(n): 13003971895628805
• 18428639398136331 is a deficient number, because the sum of its proper divisors (13003971895628805) is less than itself. Its deficiency is 5424667502507526

Bases of 18428639398136331

• Binary: 1000001011110001011111111111001000001010000101000001011₂
• Hexadecimal: 0x4178BFF9050A0B
• Base-36: 51GEO2CA4NF

Squares and roots of 18428639398136331

• 18428639398136331 squared (18428639398136331²) is 339614750066542592079556062141561
• 18428639398136331 cubed (18428639398136331³) is 6258637763264509952533671415252505255328099152691
• The square root of 18428639398136331 is 135752124.8383845041
• The cube root of 18428639398136331 is 264138.1250254017

Scales and comparisons

• 18,428,639,398,136,331 seconds is equal to 585,973,729 years, 17 weeks, 3 days, 10 hours, 18 minutes, 51 seconds.
• To count from 1 to 18,428,639,398,136,331 would take you about one billion, seven hundred fifty-seven million, nine hundred twenty-one thousand, one hundred eighty-eight 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 18428639398136331 cubic inches would be around 22011.5 feet tall.

Recreational maths with 18428639398136331

• 18428639398136331 backwards is 13363189393682481
• The number of decimal digits it has is: 17
• The sum of 18428639398136331's digits is 78
• More coming soon!