139345672921

Names of 139345672921

• Cardinal: 139345672921 can be written as One hundred thirty-nine billion, three hundred forty-five million, six hundred seventy-two thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 1.39345672921 × 10¹¹

Factors of 139345672921

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 323

Divisors of 139345672921

• Number of divisors d(n): 72
• Complete list of divisors:
  1 7 13 67 91 109 127 169 469 763 871 889 1183 1417 1651 6097 7303 8509 9919 11323 11557 13843 16129 18421 21463 51121 59563 79261 94939 96901 110617 112903 128947 150241 179959 209677 664573 774319 927481 1080643 1234207 1259713 1438021 1467739 1758061 2339467 2725801 6492367 7564501 8639449 10066147 12057253 12306427 14048359 16376269 19080607 22854793 84400771 98338513 117790087 156744289 159983551 182628667 297112309 824530609 1097210023 1278400669 1531271131 2079786163 10718897917 19906524703 139345672921
• Sum of all divisors σ(n): 178025855040
• Sum of proper divisors (its aliquot sum) s(n): 38680182119
• 139345672921 is a deficient number, because the sum of its proper divisors (38680182119) is less than itself. Its deficiency is 100665490802

Bases of 139345672921

• Binary: 10000001110001101001100011101011011001₂
• Hexadecimal: 0x2071A63AD9
• Base-36: 1S0ITDCP

Squares and roots of 139345672921

• 139345672921 squared (139345672921²) is 19417216561806312672241
• 139345672921 cubed (139345672921³) is 2705705108057686626579151862085961
• The square root of 139345672921 is 373290.3332809463
• The cube root of 139345672921 is 5184.3919674145

Scales and comparisons

• 139,345,672,921 seconds is equal to 4,430 years, 39 weeks, 4 days, 3 hours, 22 minutes, 1 second.
• To count from 1 to 139,345,672,921 would take you about eight thousand, eight hundred sixty-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 139345672921 cubic inches would be around 432 feet tall.

Recreational maths with 139345672921

• 139345672921 backwards is 129276543931
• The number of decimal digits it has is: 12
• The sum of 139345672921's digits is 52
• More coming soon!