231131745

Names of 231131745

• Cardinal: 231131745 can be written as Two hundred thirty-one million, one hundred thirty-one thousand, seven hundred forty-five.

Scientific notation

• Scientific notation: 2.31131745 × 10⁸

Factors of 231131745

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 226

Divisors of 231131745

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 9 13 15 17 27 39 45 51 61 65 85 117 127 135 153 183 195 221 255 305 351 381 459 549 585 635 663 765 793 915 1037 1105 1143 1647 1651 1755 1905 1989 2159 2295 2379 2745 3111 3315 3429 3965 4953 5185 5715 5967 6477 7137 7747 8235 8255 9333 9945 10795 11895 13481 14859 15555 17145 19431 21411 23241 24765 27999 28067 29835 32385 35685 38735 40443 44577 46665 58293 67405 69723 74295 84201 97155 100711 107055 116205 121329 131699 139995 140335 202215 209169 222885 252603 291465 302133 348615 363987 395097 421005 503555 606645 658495 757809 906399 1045845 1185291 1263015 1510665 1712087 1819935 1975485 2719197 3555873 3789045 4531995 5136261 5926455 8560435 13595985 15408783 17779365 25681305 46226349 77043915 231131745
• Sum of all divisors σ(n): 479969280
• Sum of proper divisors (its aliquot sum) s(n): 248837535
• 231131745 is an abundant number, because the sum of its proper divisors (248837535) is greater than itself. Its abundance is 17705790

Bases of 231131745

• Binary: 1101110001101100101001100001₂
• Hexadecimal: 0xDC6CA61
• Base-36: 3TLYE9

Squares and roots of 231131745

• 231131745 squared (231131745²) is 53421883546745025
• 231131745 cubed (231131745³) is 12347493165345966698318625
• The square root of 231131745 is 15203.0176280895
• The cube root of 231131745 is 613.6958682589

Scales and comparisons

• 231,131,745 seconds is equal to 7 years, 18 weeks, 1 day, 3 hours, 15 minutes, 45 seconds.
• To count from 1 to 231,131,745 would take you about eleven 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 231131745 cubic inches would be around 51.1 feet tall.

Recreational maths with 231131745

• 231131745 backwards is 547131132
• 231131745 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 231131745's digits is 27
• More coming soon!