77742121457

Names of 77742121457

• Cardinal: 77742121457 can be written as Seventy-seven billion, seven hundred forty-two million, one hundred twenty-one thousand, four hundred fifty-seven.

Scientific notation

• Scientific notation: 7.7742121457 × 10¹⁰

Factors of 77742121457

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 117

Divisors of 77742121457

• Number of divisors d(n): 128
• Complete list of divisors:
  1 7 11 13 19 67 77 91 133 143 169 209 247 361 469 737 871 1001 1183 1273 1463 1729 1859 2197 2527 2717 3211 3971 4693 5159 6097 6859 8911 9581 11323 13013 14003 15379 16549 19019 22477 24167 24187 27797 32851 35321 41743 48013 51623 61009 67067 75449 79261 89167 98021 115843 124553 147199 169169 169309 182039 215137 247247 266057 292201 314431 361361 427063 459173 459553 528143 624169 671099 793117 871871 980837 1030393 1159171 1274273 1505959 1619189 1862399 2201017 2366507 2796781 3214211 3216871 3458741 4087603 4697693 5055083 5551819 5974189 6865859 8114197 8724287 11334323 12750881 15069223 16565549 19577467 24211187 28613221 30764591 35385581 41819323 44963633 53138839 61070009 65716079 77664457 89256167 105484561 165761453 215352137 314745431 371971873 460012553 543651199 584527229 854309027 1009637941 1160330171 4091690603 5980163189 7067465587 11106017351 77742121457
• Sum of all divisors σ(n): 112485273600
• Sum of proper divisors (its aliquot sum) s(n): 34743152143
• 77742121457 is a deficient number, because the sum of its proper divisors (34743152143) is less than itself. Its deficiency is 42998969314

Bases of 77742121457

• Binary: 1001000011001110010101010000111110001₂
• Hexadecimal: 0x1219CAA1F1
• Base-36: ZPPNGTT

Squares and roots of 77742121457

• 77742121457 squared (77742121457²) is 6043837448634939802849
• 77742121457 cubed (77742121457³) is 469860744998142489006970592630993
• The square root of 77742121457 is 278822.7420010785
• The cube root of 77742121457 is 4267.9448206133

Scales and comparisons

• 77,742,121,457 seconds is equal to 2,471 years, 49 weeks, 6 days, 1 hour, 44 minutes, 17 seconds.
• To count from 1 to 77,742,121,457 would take you about four thousand, nine hundred forty-three 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 77742121457 cubic inches would be around 355.7 feet tall.

Recreational maths with 77742121457

• 77742121457 backwards is 75412124777
• The number of decimal digits it has is: 11
• The sum of 77742121457's digits is 47
• More coming soon!