78490394073

Names of 78490394073

• Cardinal: 78490394073 can be written as Seventy-eight billion, four hundred ninety million, three hundred ninety-four thousand and seventy-three.

Scientific notation

• Scientific notation: 7.8490394073 × 10¹⁰

Factors of 78490394073

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1826

Divisors of 78490394073

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 13 21 39 49 63 67 91 117 127 147 201 273 381 441 469 603 637 819 871 889 1143 1407 1609 1651 1911 2613 2667 3283 4221 4827 4953 5733 6097 6223 7839 8001 8509 9849 11263 11557 14481 14859 18291 18669 20917 25527 29547 33789 34671 42679 54873 56007 59563 62751 76581 78841 80899 101367 104013 107803 110617 128037 146419 178689 188253 204343 236523 242697 323409 331851 384111 416941 439257 536067 613029 709569 728091 754621 774319 970227 995553 1024933 1250823 1317771 1401439 1430401 1839087 2263863 2322957 2656459 3074799 3752469 4204317 4291203 5282347 5420233 6791589 6968871 7969377 9224397 9810073 10012807 12612951 12873609 13690981 15847041 16260699 18595213 23908131 29430219 30038421 41072943 47541123 48782097 55785639 68670511 88290657 90115263 95836867 123218829 130166491 167356917 177982753 206011533 287510601 390499473 533948259 618034599 670858069 862531803 1171498419 1245879271 1601844777 2012574207 3737637813 6037722621 8721154897 11212913439 26163464691 78490394073
• Sum of all divisors σ(n): 145375426560
• Sum of proper divisors (its aliquot sum) s(n): 66885032487
• 78490394073 is a deficient number, because the sum of its proper divisors (66885032487) is less than itself. Its deficiency is 11605361586

Bases of 78490394073

• Binary: 1001001000110011001000101110111011001₂
• Hexadecimal: 0x1246645DD9
• Base-36: 10235JO9

Squares and roots of 78490394073

• 78490394073 squared (78490394073²) is 6160741961734833529329
• 78490394073 cubed (78490394073³) is 483559064358634170448086613267017
• The square root of 78490394073 is 280161.3714861491
• The cube root of 78490394073 is 4281.5941973921

Scales and comparisons

• 78,490,394,073 seconds is equal to 2,495 years, 39 weeks, 15 hours, 14 minutes, 33 seconds.
• To count from 1 to 78,490,394,073 would take you about four thousand, nine hundred ninety-one 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 78490394073 cubic inches would be around 356.8 feet tall.

Recreational maths with 78490394073

• 78490394073 backwards is 37049309487
• The number of decimal digits it has is: 11
• The sum of 78490394073's digits is 54
• More coming soon!