139672440

Names of 139672440

• Cardinal: 139672440 can be written as One hundred thirty-nine million, six hundred seventy-two thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.3967244 × 10⁸

Factors of 139672440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1406

Divisors of 139672440

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 383 766 1013 1149 1532 1915 2026 2298 3039 3064 3447 3830 4052 4596 5065 5745 6078 6894 7660 8104 9117 9192 10130 11490 12156 13788 15195 15320 17235 18234 20260 22980 24312 27576 30390 34470 36468 40520 45585 45960 60780 68940 72936 91170 121560 137880 182340 364680 387979 775958 1163937 1551916 1939895 2327874 3103832 3491811 3879790 4655748 5819685 6983622 7759580 9311496 11639370 13967244 15519160 17459055 23278740 27934488 34918110 46557480 69836220 139672440
• Sum of all divisors σ(n): 455569920
• Sum of proper divisors (its aliquot sum) s(n): 315897480
• 139672440 is an abundant number, because the sum of its proper divisors (315897480) is greater than itself. Its abundance is 176225040

Bases of 139672440

• Binary: 1000010100110011101101111000₂
• Hexadecimal: 0x8533B78
• Base-36: 2B5NY0

Squares and roots of 139672440

• 139672440 squared (139672440²) is 19508390495553600
• 139672440 cubed (139672440³) is 2724784500986780462784000
• The square root of 139672440 is 11818.3095237855
• The cube root of 139672440 is 518.8441288521

Scales and comparisons

• 139,672,440 seconds is equal to 4 years, 22 weeks, 6 days, 13 hours, 54 minutes.
• To count from 1 to 139,672,440 would take you about six 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 139672440 cubic inches would be around 43.2 feet tall.

Recreational maths with 139672440

• 139672440 backwards is 044276931
• 139672440 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 139672440's digits is 36
• More coming soon!