31242646818

Names of 31242646818

• Cardinal: 31242646818 can be written as Thirty-one billion, two hundred forty-two million, six hundred forty-six thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 3.1242646818 × 10¹⁰

Factors of 31242646818

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 21349

Divisors of 31242646818

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 17 18 34 51 61 79 102 122 153 158 183 237 306 366 474 549 711 1037 1098 1343 1422 2074 2686 3111 4029 4819 6222 8058 9333 9638 12087 14457 18666 21187 24174 28914 42374 43371 63561 81923 86742 127122 163846 190683 245769 360179 381366 491538 720358 737307 1080537 1292407 1474614 1673773 2161074 2584814 3241611 3347546 3877221 5021319 6483222 7754442 10042638 11631663 15063957 21970919 23263326 28454141 30127914 43941838 56908282 65912757 85362423 102100153 131825514 170724846 197738271 204200306 256087269 306300459 395476542 512174538 612600918 918901377 1735702601 1837802754 3471405202 5207107803 10414215606 15621323409 31242646818
• Sum of all divisors σ(n): 73774920960
• Sum of proper divisors (its aliquot sum) s(n): 42532274142
• 31242646818 is an abundant number, because the sum of its proper divisors (42532274142) is greater than itself. Its abundance is 11289627324

Bases of 31242646818

• Binary: 11101000110001101001111010100100010₂
• Hexadecimal: 0x74634F522
• Base-36: ECP2CKI

Squares and roots of 31242646818

• 31242646818 squared (31242646818²) is 976102980194285525124
• 31242646818 cubed (31242646818³) is 30496040668207311683298797655432
• The square root of 31242646818 is 176755.8961336227
• The cube root of 31242646818 is 3149.5555539231

Scales and comparisons

• 31,242,646,818 seconds is equal to 993 years, 21 weeks, 5 days, 17 hours, 18 seconds.
• To count from 1 to 31,242,646,818 would take you about one thousand, nine hundred eighty-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 31242646818 cubic inches would be around 262.5 feet tall.

Recreational maths with 31242646818

• 31242646818 backwards is 81864624213
• The number of decimal digits it has is: 11
• The sum of 31242646818's digits is 45
• More coming soon!