131306240

Names of 131306240

• Cardinal: 131306240 can be written as One hundred thirty-one million, three hundred six thousand, two hundred forty.

Scientific notation

• Scientific notation: 1.3130624 × 10⁸

Factors of 131306240

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 627

Divisors of 131306240

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 169 208 256 260 320 338 416 520 607 640 676 832 845 1040 1214 1280 1352 1664 1690 2080 2428 2704 3035 3328 3380 4160 4856 5408 6070 6760 7891 8320 9712 10816 12140 13520 15782 16640 19424 21632 24280 27040 31564 38848 39455 43264 48560 54080 63128 77696 78910 97120 102583 108160 126256 155392 157820 194240 205166 216320 252512 315640 388480 410332 505024 512915 631280 776960 820664 1010048 1025830 1262560 1641328 2020096 2051660 2525120 3282656 4103320 5050240 6565312 8206640 10100480 13130624 16413280 26261248 32826560 65653120 131306240
• Sum of all divisors σ(n): 341135424
• Sum of proper divisors (its aliquot sum) s(n): 209829184
• 131306240 is an abundant number, because the sum of its proper divisors (209829184) is greater than itself. Its abundance is 78522944

Bases of 131306240

• Binary: 111110100111001001100000000₂
• Hexadecimal: 0x7D39300
• Base-36: 266CJK

Squares and roots of 131306240

• 131306240 squared (131306240²) is 17241328662937600
• 131306240 cubed (131306240³) is 2263894039334563610624000
• The square root of 131306240 is 11458.8934893385
• The cube root of 131306240 is 508.2707548753

Scales and comparisons

• 131,306,240 seconds is equal to 4 years, 9 weeks, 17 hours, 57 minutes, 20 seconds.
• To count from 1 to 131,306,240 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 131306240 cubic inches would be around 42.4 feet tall.

Recreational maths with 131306240

• 131306240 backwards is 042603131
• 131306240 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 131306240's digits is 20
• More coming soon!