131309220

Names of 131309220

• Cardinal: 131309220 can be written as One hundred thirty-one million, three hundred nine thousand, two hundred twenty.

Scientific notation

• Scientific notation: 1.3130922 × 10⁸

Factors of 131309220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 833

Divisors of 131309220

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 59 60 70 84 98 105 118 140 147 177 196 210 236 245 294 295 354 413 420 490 588 590 708 735 757 826 885 980 1180 1239 1470 1514 1652 1770 2065 2271 2478 2891 2940 3028 3540 3785 4130 4542 4956 5299 5782 6195 7570 8260 8673 9084 10598 11355 11564 12390 14455 15140 15897 17346 21196 22710 24780 26495 28910 31794 34692 37093 43365 44663 45420 52990 57820 63588 74186 79485 86730 89326 105980 111279 133989 148372 158970 173460 178652 185465 222558 223315 267978 312641 317940 370930 445116 446630 535956 556395 625282 669945 741860 893260 937923 1112790 1250564 1339890 1563205 1875846 2188487 2225580 2679780 3126410 3751692 4376974 4689615 6252820 6565461 8753948 9379230 10942435 13130922 18758460 21884870 26261844 32827305 43769740 65654610 131309220
• Sum of all divisors σ(n): 435516480
• Sum of proper divisors (its aliquot sum) s(n): 304207260
• 131309220 is an abundant number, because the sum of its proper divisors (304207260) is greater than itself. Its abundance is 172898040

Bases of 131309220

• Binary: 111110100111001111010100100₂
• Hexadecimal: 0x7D39EA4
• Base-36: 266EUC

Squares and roots of 131309220

• 131309220 squared (131309220²) is 17242111257008400
• 131309220 cubed (131309220³) is 2264048180310992537448000
• The square root of 131309220 is 11459.0235186075
• The cube root of 131309220 is 508.2745999209

Scales and comparisons

• 131,309,220 seconds is equal to 4 years, 9 weeks, 18 hours, 47 minutes.
• To count from 1 to 131,309,220 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 131309220 cubic inches would be around 42.4 feet tall.

Recreational maths with 131309220

• 131309220 backwards is 022903131
• 131309220 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 131309220's digits is 21
• More coming soon!