166398962874921

Names of 166398962874921

• Cardinal: 166398962874921 can be written as One hundred sixty-six trillion, three hundred ninety-eight billion, nine hundred sixty-two million, eight hundred seventy-four thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 1.66398962874921 × 10¹⁴

Factors of 166398962874921

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 142

Divisors of 166398962874921

• Number of divisors d(n): 320
• Complete list of divisors:
  1 3 7 9 21 27 29 49 63 81 87 103 147 189 203 243 261 309 343 441 567 609 721 729 783 927 1029 1323 1421 1701 1827 2163 2187 2349 2401 2781 2987 3087 3969 4263 5047 5103 5481 6489 7047 7203 8343 8961 9261 9947 10609 11907 12789 15141 15309 16443 19467 20909 21141 21609 25029 26883 27783 29841 31827 35329 35721 38367 45423 49329 58401 62727 63423 64827 69629 74263 75087 80649 83349 89523 95481 105987 107163 115101 136269 146363 147987 175203 188181 194481 208887 222789 225261 241947 247303 250047 268569 286443 307661 317961 345303 408807 439089 443961 519841 525609 564543 583443 626661 668367 725841 741909 750141 805707 859329 922983 953883 1024541 1035909 1092727 1226421 1317267 1559523 1576827 1693629 1750329 1879983 2005101 2153627 2177523 2225727 2417121 2577987 2768949 2861649 3073623 3107727 3278181 3638887 3679263 3951801 4678569 5080887 5250987 5639949 6015303 6460881 6532569 6677181 7171787 7251363 7649089 7733961 8306847 8584947 9220869 9834543 10916661 11037789 11855403 14035707 15075389 15242661 16919847 18045909 19382643 20031543 21515361 21754089 22947267 23201883 24920541 25472209 25754841 27662607 29503629 31689083 32749983 35566209 42107121 45226167 45727983 50759541 53543623 54137727 58147929 60094629 64546083 68841801 74761623 76416627 77264523 82987821 88510887 95067249 98249949 105527723 106698627 126321363 135678501 152278623 160630869 162413181 174443787 180283887 193638249 206525403 221823581 224284869 229249881 248963463 265532661 285201747 294749847 316583169 320095881 374805361 378964089 407035503 481892607 523331361 540851661 580914747 619576209 665470743 672854607 687749643 738694061 746890389 796597983 855605241 884249541 949749507 1124416083 1136892267 1221106509 1445677821 1552765067 1569994083 1742744241 1858728627 1996412229 2063248929 2216082183 2240671167 2389793949 2566815723 2623637527 2652748623 2849248521 3373248249 3663319527 4337033463 4658295201 4709982249 5228232723 5576185881 5989236687 6189746787 6648246549 7700447169 7870912581 7958245869 8547745563 10119744747 10869355469 10989958581 13011100389 13974885603 15684698169 16728557643 17967710061 18569240361 19944739647 23101341507 23612737743 25643236689 30359234241 32608066407 32969875743 39033301167 41924656809 53903130183 55707721083 59834218941 69304024521 70838213229 76085488283 76929710067 91077702723 97824199221 117099903501 125773970427 161709390549 179502656823 212514639687 228256464849 230789130201 273233108169 293472597663 377321911281 485128171647 538507970469 637543919061 684769394547 819699324507 880417792989 1131965733843 1615523911407 1912631757183 2054308183641 2641253378967 3395897201529 5737895271549 6162924550923 7923760136901 18488773652769 23771280410703 55466320958307 166398962874921
• Sum of all divisors σ(n): 304128367296000
• Sum of proper divisors (its aliquot sum) s(n): 137729404421079
• 166398962874921 is a deficient number, because the sum of its proper divisors (137729404421079) is less than itself. Its deficiency is 28669558453842

Bases of 166398962874921

• Binary: 100101110101011011000111000100101011101000101001₂
• Hexadecimal: 0x9756C712BA29
• Base-36: 1MZEMM79K9

Squares and roots of 166398962874921

• 166398962874921 squared (166398962874921²) is 27688614845849337229490756241
• 166398962874921 cubed (166398962874921³) is 4607356793792470312920565605260703783131961
• The square root of 166398962874921 is 12899572.1973606939
• The cube root of 166398962874921 is 55002.6404104199

Scales and comparisons

• 166,398,962,874,921 seconds is equal to 5,290,972 years, 16 weeks, 2 days, 3 hours, 55 minutes, 21 seconds.
• To count from 1 to 166,398,962,874,921 would take you about thirteen million, two hundred twenty-seven thousand, four hundred thirty 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 166398962874921 cubic inches would be around 4583.6 feet tall.

Recreational maths with 166398962874921

• 166398962874921 backwards is 129478269893661
• 166398962874921 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 166398962874921's digits is 81
• More coming soon!