13870440

Names of 13870440

• Cardinal: 13870440 can be written as Thirteen million, eight hundred seventy thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.387044 × 10⁷

Factors of 13870440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1437

Divisors of 13870440

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 243 270 324 360 405 486 540 648 810 972 1080 1215 1427 1620 1944 2430 2854 3240 4281 4860 5708 7135 8562 9720 11416 12843 14270 17124 21405 25686 28540 34248 38529 42810 51372 57080 64215 77058 85620 102744 115587 128430 154116 171240 192645 231174 256860 308232 346761 385290 462348 513720 577935 693522 770580 924696 1155870 1387044 1541160 1733805 2311740 2774088 3467610 4623480 6935220 13870440
• Sum of all divisors σ(n): 46781280
• Sum of proper divisors (its aliquot sum) s(n): 32910840
• 13870440 is an abundant number, because the sum of its proper divisors (32910840) is greater than itself. Its abundance is 19040400

Bases of 13870440

• Binary: 110100111010010101101000₂
• Hexadecimal: 0xD3A568
• Base-36: 89AI0

Squares and roots of 13870440

• 13870440 squared (13870440²) is 192389105793600
• 13870440 cubed (13870440³) is 2668521548563781184000
• The square root of 13870440 is 3724.3039618163
• The cube root of 13870440 is 240.2684496163

Scales and comparisons

• 13,870,440 seconds is equal to 22 weeks, 6 days, 12 hours, 54 minutes.
• To count from 1 to 13,870,440 would take you about thirty-four weeks!

  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 13870440 cubic inches would be around 20 feet tall.

Recreational maths with 13870440

• 13870440 backwards is 04407831
• 13870440 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13870440's digits is 27
• More coming soon!